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