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