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