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