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