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