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