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