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