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