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