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