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