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