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