20 Number Theory Calculators
Absolute Value Calculator
Calculate absolute values, solve equations, and evaluate expressions with step-by-step guidance and visual number line support using this simple tool.
Check Digit Calculator
Calculate or verify check digits for UPC, ISBN, VIN, credit cards, and more. Prevent errors and ensure accuracy with this user-friendly tool.
In category: Other Finance
Collatz Conjecture Calculator
Explore number patterns with the Collatz Conjecture Calculator. Generate sequences, view charts, and understand the famous 3x+1 problem easily.
In category: Sequences and Series
Comparing Fractions Calculator
Compare two fractions easily using multiple methods such as decimals, common denominators, or cross multiplication. See results with clear steps and explanations.
In category: Algebra and General
Complex Number Calculator
Perform complex number operations easily with our Complex Number Calculator. Add, subtract, multiply, divide, and convert to polar form instantly.
Equivalent Fractions Calculator
Find equivalent fractions easily with this free calculator. Generate, simplify, or match fractions with steps and decimals. Perfect for students and teachers.
In category: Algebra and General
Expanded Form Calculator
Break down numbers into expanded form easily. Choose standard, word, or exponential format. Great for students, teachers, and anyone learning place value.
In category: Algebra and General
Factor Calculator
Find all factors of a number, including factor pairs and prime factorisation. This simple tool helps identify prime or composite numbers instantly.
Factorial Calculator
Calculate factorials with step-by-step solutions, scientific notation, and formatting options. Perfect for maths, statistics, and combinatorics!
In category: Algebra II
Fraction to Decimal Calculator
Convert fractions to decimals and vice versa with step-by-step solutions. Identify repeating or terminating decimals easily using this simple online calculator.
In category: Algebra and General
Greatest Common Factor Calculator
Find the Greatest Common Factor (GCF) of two or more numbers quickly. Simplify fractions, solve mathematical problems, and view step-by-step explanations.
Harmonic Number Calculator
Calculate harmonic numbers, generalised sums, and sequences with the Harmonic Number Calculator. Fast, accurate, and perfect for maths and analysis.
In category: Sequences and Series
Least Common Multiple Calculator
Find the Least Common Multiple (LCM) of two or more numbers quickly. Includes steps, GCF, and prime factorisation for clear, accurate maths results.
Log Base 2 Calculator
Calculate log base 2 of any positive number with step-by-step results, exact values, and real-world applications in computing, binary search, and more.
In category: Algebra and General
Logarithm Calculator
Solve and explore logarithmic expressions easily with this interactive Logarithm Calculator. Includes step-by-step solutions, base conversion, and equation solving.
In category: Algebra II
Modulo Calculator
Calculate remainders using our Modulo Calculator. Enter dividend and divisor to get results with optional steps and decimal precision.
Pascal's Triangle Calculator
Generate Pascal’s Triangle, find binomial coefficients, explore patterns, and expand binomials with this simple, quick, and visual calculator.
In category: Sequences and Series
Prime Factorisation Calculator
Break down any positive integer into its prime factors with this easy-to-use Prime Factorisation Calculator. Includes factor trees, exponents, and properties.
Prime Number Calculator
Use the Prime Number Calculator to check primes, find prime factors, list primes in a range, explore twin primes, and learn with visual explanations.
In category: Sequences and Series
Remainder Calculator
Calculate remainders, modular operations, or solve congruences. A handy tool for maths learners, students, and anyone working with division problems.
In category: Algebra and General
We'd love to hear your thoughts on our number theory calculators! If you have any feedback or ideas for new tools, feel free to share—your input helps us create even more helpful resources for tackling concepts like prime factorization or finding common denominators. We're excited to let you know that more number theory tools and calculators for other subjects are in the works, so stay tuned for updates!