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