There isn't any.
There are NO whole numbers at all between 6 and 7!
It is 6 as a whole number
since it is over the halfway point between 6 and 7, the nearest whole number would be 7
There are no prime numbers in between these numbers. The only whole number between them is 6
Between 6 and 7 6 x 6 = 36 7 x 7 = 49
-5
42/6 = 42 ÷ 6 = 7
42/6 = 7, a whole number.
As a whole number 42/6 = 7
7 is a whole number, six is an interger.
2 & 6/7
6.5 is halfway between 6 and 7. In the the most widely used system of rounding, it would round up to 7, but it is no closer to 7 than to 6.