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