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