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