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