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