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