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