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