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 {3, 7, 21, 23, 29, 13} → ______
- Prime numbers in {29, 12, 8, 27, 13, 11} → ______
- Prime numbers in {17, 11, 13, 7, 21, 15} → ______
- Prime numbers in {13, 25, 17, 12, 2, 23} → ______
- Prime numbers in {8, 3, 5, 13, 12, 25} → ______
- Prime numbers in {23, 11, 7, 12, 8, 17} → ______
- Prime numbers in {9, 17, 8, 2, 15, 12} → ______
- Prime numbers in {12, 2, 9, 13, 5, 15} → ______
- Prime numbers in {23, 17, 12, 11, 3, 7} → ______
- Prime numbers in {12, 19, 23, 8, 2, 7} → ______
- Prime numbers in {15, 9, 25, 13, 23, 27} → ______
- Prime numbers in {13, 9, 11, 2, 7, 15} → ______
- Prime numbers in {21, 8, 25, 12, 17, 13} → ______
- Prime numbers in {21, 7, 9, 5, 2, 25} → ______
- Prime numbers in {29, 12, 17, 27, 2, 21} → ______
- Prime numbers in {8, 9, 21, 19, 5, 23} → ______
- Prime numbers in {8, 17, 19, 3, 7, 9} → ______
- Prime numbers in {7, 27, 5, 25, 21, 2} → ______
- Prime numbers in {29, 15, 27, 11, 5, 23} → ______
- Prime numbers in {5, 8, 2, 15, 11, 9} → ______