Question

which whole number cannot be used a divisor

Answer 1

It's 0 (zero).


Dividing by zero gives no specific answer

Answer 2

0 cannot be the divisor of any number.

1) Whole numbers are positive natural numbers including zero.They are numbers that represented as the whole numbers without any decimals.

2) Here is the example of whole numbers {0, 1, 2, 3, 4, 5...}.

3) We can divide any number with any of the whole number except 0.

4) Because when any number is divisible by 0 then the number may be lead to the infinite number which is not known.

So 0 can never by any divisor as it leads to the infinity.