Find all factors, prime factors, and factor pairs of any number. Check if a number is prime.
Factors of a number are integers that divide it evenly with no remainder. For example, factors of 12 are 1, 2, 3, 4, 6, and 12.
Every number can be expressed as a product of prime numbers. For example, 12 = 2 × 2 × 3.
Enter any positive integer and click Calculate to instantly see all factors and the prime factorization.