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