Question

Select all the numbers that are composite.
(1 point)

11


0 21


• 31


• 41


0 51

Answer 1

To determine which numbers are composite among the given options, we need to recall that a composite number is a positive integer that has at least one positive divisor other than one and itself.

Let's analyze the numbers provided:

- **11**: This is a prime number (only divisible by 1 and 11).
- **0**: This is neither prime nor composite.
- **21**: This is a composite number (divisible by 1, 3, 7, and 21).
- **31**: This is a prime number (only divisible by 1 and 31).
- **41**: This is a prime number (only divisible by 1 and 41).
- **51**: This is a composite number (divisible by 1, 3, 17, and 51).

Based on this analysis, the composite numbers from your list are:

- **21**
- **51**

So, the composite numbers selected are **21 and 51**.