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