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