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