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