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