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