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