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