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