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