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