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