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