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