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