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