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