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