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