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