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