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