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