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