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