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