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