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