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