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