Why does the number 17 not belong with 26, 44, & 65

17 is a prime number whereas 26,44 and 65 are the composite numbers.

Step-by-step explanation:

The number 17 does not belong with 26, 44 and 65.

Here 26 is divisible by 2 and 13.

44 is divisible by 2, 4 and 11.

65 is divisible by 5 and 13

But 17 is divisible by 1 and itself, that is it's a prime number, whereas the other numbers 26, 44 and 65 is divided by 1, itself and also by other numbers.

So 17 is a prime number whereas the 65, 26 and 44 are composite numbers.