Prime Number Checker
Check whether a number is prime and see its factors.
360 is not prime
Prime factorization
360 = 23 × 32 × 5
Prime numbers and factorization
A prime number is a whole number greater than 1 whose only divisors are 1 and itself — 2, 3, 5, 7, 11, and so on. Every other whole number is composite and can be written as a unique product of primes (its prime factorization), for example 360 = 2³ × 3² × 5. This checker tests divisibility up to the square root of your number, which is fast and exact for values up to a trillion.
Related math tools: the GCD & LCM calculator, the number to words converter, and the scientific notation converter.
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