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