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