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