Factors, Multiples & Primes Review

This free printable review worksheet mixes every number theory skill on one page for 6th graders: finding factors and multiples, computing GCF and LCM, classifying primes and composites, and applying divisibility rules to 4-digit numbers.

How to Solve Factors & Multiples

Identify what each question asks before computing. For factor and multiple questions, test candidates by dividing. For GCF and LCM, compare factor lists or walk multiples. For prime or composite, test the small primes in order. For divisibility, use the rules: even endings for 2, digit sums for 3 and 9, last two digits for 4, and last three digits for 8.

You can view the preview of this worksheet below, or download the full high-resolution PDF along with the answer key for easy grading.