One Atta Time Flash Cards Distance Learning Create New Sheet Select a Worksheet > Version 1 Version 2 Version 3 Version 4 Version 5 Version 6 Version 7 Version 8 Version 9 Version 10 Grab 'em All Finding Prime Factors Break a number into its prime factors using division by small primes.Write a number as a product of prime numbers (prime factorization).Use factor pairs to help find all the prime factors of a number.