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