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