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