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