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