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