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