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Number Theory Calculators
Check primes, factorials, GCD and LCM, generate random numbers, and convert between number bases.
Prime Number
Check if a number is prime and find factors.
Factorial
Compute factorials for non-negative integers.
GCD / HCF
Find the Greatest Common Divisor using Euclidean algorithm.
LCM
Find the Least Common Multiple of numbers.
Random Number
Generate random numbers within a specified range.
Number Base
Convert between Binary, Octal, Decimal, and Hexadecimal.