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