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