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