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