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