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