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