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