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