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