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