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