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