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