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