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