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