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