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