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