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