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