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