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