Use our prime factors calculator to identify the prime factors and divisors of any whole number. Feel free to use this calculator to check your homework. Identifying the prime factors of a number ( or prime factorization) is the first step to determining the least common multiple or greatest common factor of two or more numbers.
You can also visually review our Prime Factorization Table for a list of the prime factors for all numbers between 1 and 1001.
Use the prime factorization calculator below to find the prime factors of any given whole number