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