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