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