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