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