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