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