Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {21, 7, 12, 3, 25, 9} → ______
- Prime numbers in {13, 5, 3, 23, 27, 7} → ______
- Prime numbers in {12, 21, 7, 15, 27, 23} → ______
- Prime numbers in {23, 11, 25, 12, 21, 5} → ______
- Prime numbers in {3, 23, 19, 11, 21, 29} → ______
- Prime numbers in {13, 17, 7, 5, 19, 3} → ______
- Prime numbers in {3, 8, 23, 5, 27, 2} → ______
- Prime numbers in {21, 2, 12, 5, 8, 3} → ______
- Prime numbers in {27, 13, 21, 11, 23, 5} → ______
- Prime numbers in {3, 23, 29, 7, 12, 2} → ______
- Prime numbers in {5, 13, 21, 3, 23, 8} → ______
- Prime numbers in {2, 7, 11, 9, 13, 25} → ______
- Prime numbers in {5, 7, 27, 29, 23, 25} → ______
- Prime numbers in {23, 5, 15, 2, 21, 11} → ______
- Prime numbers in {8, 23, 9, 29, 27, 25} → ______
- Prime numbers in {23, 11, 5, 13, 3, 9} → ______
- Prime numbers in {17, 2, 12, 23, 11, 15} → ______
- Prime numbers in {13, 8, 21, 2, 9, 25} → ______
- Prime numbers in {3, 5, 23, 2, 13, 17} → ______
- Prime numbers in {17, 5, 27, 21, 23, 2} → ______