Teoria dos Números
Fatoração prima, MDC, MMC, algarismos romanos, nomes de números e ferramentas de divisibilidade.
GCF Calculadora
Encontrar the Greatest Common Factor of two or more numbers using prime factorization or the Euclidean algorithm.
LCM Calculadora
Calcular the Least Common Multiple of two or more numbers instantly.
Prime Factorization Tool
Break down any number into its prime factors with a visual factor tree.
Significant Figures Calculadora
Count significant figures and round numbers to the correct number of sig figs.
Rounding Calculadora
Round numbers to the nearest tens, hundreds, thousands, decimals, or significant figures.
Binary Conversor
Converter decimal numbers to binary representation and vice-versa.
Hexadecimal Conversor
Converter numbers between decimal, binary, and hexadecimal formats.
Roman Numerals Conversor
Converter standard arabic numbers to ancient Roman numerals and vice-versa.
Divisibility Calculadora
Check if a number is divisible by other integers and view applicable division rules.
Number Names Conversor
Spell out numbers in English words (e.g. 142 to "one hundred forty-two").
Prime Number Checker
Verify if a number is prime, composite, or neither, with dynamic divisor scanning.
Digital Root Calculator
Calculate the digital root (iterative sum of digits) of a positive integer.
GCF and LCM Calculator
Calculate both the Greatest Common Factor (GCF) and Least Common Multiple (LCM) of multiple integers.
Magic Square Calculator
Generate a magic square grid of size 3x3, 4x4, or 5x5.
Modular Multiplicative Inverse Calculator
Find the multiplicative inverse of an integer modulo n.
Relatively Prime Calculator
Determine if two numbers are relatively prime (coprime).
Triangular Numbers Calculator
Generate and calculate the n-th triangular number.
Fermat's Little Theorem Calculator
Demonstrate Fermat's Little Theorem for a base a and prime modulus p.
Power Mod Calculator
Calculate large powers modulo m (b^e mod m) using modular exponentiation.
Chinese Remainder Theorem Solver
Solve Chinese Remainder Theorem problems online. Interactive calculator for CRT with step-by-step solutions. Understand modular arithmetic and number theory concepts easily.
Common Multiples Finder
Easily find the common multiples of two or more numbers up to a given limit with our free online Common Multiples Finder. Perfect for math students and enthusiasts.
Continued Fraction Calculator
Calculate the continued fraction representation of any irrational number. Explore approximations and understand the concept with our easy-to-use tool.
Common Factors Calculator | Find Common Factors of Numbers
Easily find the common factors of two or more numbers with our online calculator. Visualize factors and copy results instantly. Perfect for math learners and educators.
Derangement Calculator
Calculate derangements online quickly and easily. Find the number of permutations where no element is in its original position. Perfect for combinatorics and probability calculations.
Congruence Modulo Checker
Easily check if two numbers are congruent modulo another number. Understand modular arithmetic with visualizations and examples.
Combination Calculator | Calculate Combinations Easily
Calculate combinations (nCr) easily with our online calculator. Understand combinations, learn the formula, and solve problems involving selecting items from a set. Free and user-friendly!
Combination with Repetition Calculator
Easily calculate combinations with repetition using our online calculator. Understand how many ways you can choose items with repetition allowed. Perfect for combinatorics and probability calculations.
Clock Arithmetic Modulo Calculator
Easily calculate clock arithmetic modulo. Determine the time after adding hours on a clock with a 12 or 24 hour format. Visualize the clock changes.
Divisibility Test - Check if a Number is Divisible by Another
Effortlessly check if a number is divisible by another using our interactive Divisibility Test Calculator. Understand divisibility rules and get instant results.
Greatest Common Factor (GCF) Calculator
Easily calculate the Greatest Common Factor (GCF) of multiple numbers with our interactive calculator. Understand GCF with visualizations and examples.
Euclidean Algorithm Calculator
Easily calculate the Greatest Common Divisor (GCD) of two numbers using the Euclidean Algorithm. Step-by-step visualization and explanation included.
Decimal to Binary Converter
Effortlessly convert decimal numbers to binary with our interactive converter. Understand the conversion process with step-by-step visualization. Perfect for students, educators, and anyone needing quick binary conversions.
LCM Calculator: Find Least Common Multiple Online
Calculate the Least Common Multiple (LCM) of numbers or expressions quickly and easily online. Our free LCM calculator simplifies math for students and professionals.
Factors of a Number Calculator
Easily find all factors of a number with our online calculator. Visualize factors and copy results. Perfect for math learning and problem-solving.
Factorial Calculator
Calculate the factorial of any non-negative integer instantly. Understand factorials with visual representation and easy copy functionality.
Factor Finder: Quickly Find Factors of Any Number
Discover all factors of a number with our easy-to-use Factor Finder tool. Visualize factors and copy results instantly. Perfect for math learners and enthusiasts!
Factor Calculator: Find Factors of a Number
Easily calculate the factors of any number with our online Factor Calculator. Discover all factors, understand factor pairs, and more. Fast and user-friendly!
Irrational Number Comparator - Compare Irrational Numbers Online
Easily compare two irrational numbers or mathematical expressions online. Determine if one is greater than, less than, or equal to the other with this free and user-friendly tool.
Greatest Common Factor (GCF) Calculator
Easily calculate the Greatest Common Factor (GCF) of multiple numbers with our interactive online calculator. Understand GCF with visualizations and copy results instantly.
Linear Congruence Solver
Solve linear congruences of the form ax ≡ b (mod m) quickly and easily with our interactive solver. Understand solutions and modular arithmetic concepts.
Divisor with Remainder Finder | Math Tool
Easily find divisors of any number that leave a specific remainder. A user-friendly tool for number theory calculations and exploring division concepts.
Modular Addition Calculator
Calculate modular addition easily with our interactive tool. Understand modulo arithmetic with visualizations and step-by-step explanations. Perfect for number theory and mathematical explorations.
Irrational Number Generator
Generate a random irrational number in the form of √n where n is a non-perfect square. Input the upper limit to create irrational numbers instantly.
Modulo Calculator | Find Remainder of Division
Calculate the remainder when one number is divided by another using our online Modulo Calculator. Easily find the modulus with this user-friendly tool.
LCM Calculator: Find the Least Common Multiple Online
Calculate the Least Common Multiple (LCM) of two numbers quickly and easily with our online LCM calculator. Visualize multiples and understand the concept of LCM.
Modular Inverse Calculator | Find Inverse Modulo
Compute modular inverses, verify when an inverse exists, and inspect the gcd condition behind multiplicative inverses modulo m.
Is it a Prime Number? - Online Prime Checker
Easily check if a number is prime with our online prime number checker. Enter any number and instantly find out if it's a prime number. Fast, accurate, and free!
Divisibility Checker - Find Remainder & Check Divisibility
Easily check if a number is divisible by another and find the remainder. A user-friendly tool for quick divisibility checks and understanding remainders in number theory.
Modular Subtraction Calculator
Calculate modular subtraction easily with our online tool. Understand modular arithmetic and find the modular difference between two numbers.
Modular Multiplication Calculator
Easily calculate modular multiplication online. Our tool simplifies finding the modular product of two numbers with a given modulus. Understand modular arithmetic with this intuitive calculator.
Permutation Calculator
Calculate permutations easily online. Understand permutations with our interactive calculator and formula. Learn what is permutation and how to calculate it.
Next Multiple Calculator | Find the Next Multiple
Easily find the next multiple of a number. Enter a number and a multiplier to calculate the smallest multiple of the multiplier that is greater than the given number. Free online math tool.
Irrational Number Checker - Is it Irrational?
Quickly determine if a number is rational or irrational with our online Irrational Number Checker. Supports special constants like π, e, √2.
Prime Number List Generator
Generate a list of prime numbers up to a specified limit with our easy-to-use tool. Explore prime numbers within a range and understand their distribution. Perfect for students and math enthusiasts!
Prime Number Checker
Effortlessly check if a number is prime with our online Prime Number Checker. Discover prime numbers quickly and easily. Ideal for students, educators, and math enthusiasts.
Number of Factors Calculator
Calculate the number of factors of any positive integer easily with our online tool. Discover all factors and understand factor counting.
Pi Digit Calculator - Calculate First N Digits of Pi
Calculate and display the first n digits of Pi with this interactive Pi calculator. Enter the number of digits and explore the endless number Pi.
Sum of Factors Calculator
List the positive divisors of an integer, sum them, and inspect the factor-pair structure with a compact number-theory workflow.
Order of Element Modulo n Calculator
Easily calculate the order of an element modulo n. Find the smallest positive integer k such that a^k ≡ 1 (mod n) with our interactive tool.
Sum of Squares Calculator
Easily calculate the sum of squares for a range of numbers with our online calculator. Perfect for math students, researchers, and professionals needing quick and accurate sum of squares calculations.
Ten Thousands Place Value Calculator: Find the Digit
Easily identify the ten thousands place digit in any whole number up to 1,000,000 with our interactive calculator. Visualize place values and learn!
Integer Partition Calculator: Find Number of Partitions
Calculate the number of partitions for a given positive integer. Visualize partitions and easily copy the result. Learn about integer partitions with examples and definitions.
Irrational Number Generator - Generate Pi Based Irrational Numbers
Easily generate irrational numbers by multiplying Pi (π) with any rational number. A simple and interactive tool for exploring irrational numbers in mathematics.
Square Number List Calculator
Calculate and visualize a list of square numbers up to a given limit. Discover patterns and easily copy the generated list. Ideal for math enthusiasts and students.
Place Value Decomposition Calculator
Easily decompose any whole number into its place value components with our interactive Place Value Decomposition Calculator. Visualize each digit's value in a fun and engaging way.
Modular Exponentiation Calculator | EasyMaths
Calculate modular exponentiation (a^b mod n) using the binary method. Perfect for cryptography, number theory, and computer science.
Multinomial Coefficient Calculator
Calculate multinomial coefficients effortlessly! Our tool helps you find the number of ways to arrange items into groups. Easy, visual, and accurate for combinatorics and statistics.
Sum of Positive Integers Calculator
Calculate the sum of consecutive positive integers quickly and easily. Enter the start and end numbers to find the sum using our intuitive online calculator.
Quadratic Congruence Solver
Solve quadratic congruences of the form ax² + bx + c ≡ 0 (mod m) easily with our online tool. Visualize solutions and copy results for your number theory needs.
Permutation Calculator - Calculate Permutations Online
Easily calculate permutations (nPr) online. Understand permutations with our user-friendly calculator and formula explanations. Perfect for students and professionals.
Pi Approximator
Approximate Pi to a chosen number of decimal places and compare that rounded value with classic rational approximations like 22/7 and 355/113.
Prime Factor Calculator: Find Factors Easily
Discover the prime factors of any number with our easy-to-use Prime Factor Calculator. Instantly find and list all prime factors for number theory and math problem solving.
Perfect Number Checker
Check if a number is a perfect number. See proper divisors, their sum, and learn about Euclid's perfect number formula.
Cube Number List Calculator - Generate Cube Numbers Online
Calculate and display a list of cube numbers up to a specified limit. Visualize cube numbers in a user-friendly way. Enter a positive integer to generate the list of cubes instantly.
Golden Ratio Calculator - Visualize Phi & Fibonacci Sequence
Calculate golden ratio numbers instantly! Explore numbers above and below any given number based on the golden ratio (Phi). Understand Fibonacci sequence and its relation to the golden ratio.
Number of Digits in 10^x | Power of 10 Digit Calculator
Easily calculate the number of digits in a power of 10. Enter the exponent and instantly find out how many digits are in 10 raised to that power. Visual and interactive tool for understanding powers of 10.