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