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