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