Free Prime Factorization Worksheets

Write the prime factorization of a number using exponents, or find a number from its prime factorization. Adjustable number size up to 500.

Difficulty levels: Numbers up to 50, 100, 200, or 500

Generate a Prime Factorization Worksheet

Pick a version below — each one is randomly generated, so you can make as many unique copies as you need.

Activity:

Write the Prime Factorization

Prime Factorization — numbers up to 50

Prime Factorization — numbers up to 100

Prime Factorization — numbers up to 200

Prime Factorization — numbers up to 500

Find the Value (evaluate the factorization)

Value from a Prime Factorization — up to 50

Value from a Prime Factorization — up to 100

Value from a Prime Factorization — up to 200

Value from a Prime Factorization — up to 500

Mixed (both question types)

Prime Factorization Practice — up to 50

Prime Factorization Practice — up to 100

Prime Factorization Practice — up to 200

Prime Factorization Practice — up to 500

Choose your own difficulty, problem style, and mix in other concepts.