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