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