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