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