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