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