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