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