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