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