Question

I thought of a number, then divided it by another number, and got a result of 7. Think of the possible values for my number and the number I divided it by. What number is impossible to divide by? What number can my original number not be?

My number is a multiple of ?
The number I divided my number by can be any number but ?
My number cannot be a number which we cannot divide by ?

Answer 1

Let the first unknown number be
`x`
And the second unknown number be
`y`

We know that
`x` ÷
`y` = 7

My number is a multiple of 7 and also multiple of
`y`
This is because of 7 ×
`y` =
`x`
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The number I divided my number by can be any number but ZERO
Because
`x` ÷ 0 is undefined
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My number cannot be a number which we cannot divide by SEVEN
Because
`x` ÷
`y` = 7, so
`x` must be divisible by 7 to obtain
`y`


`(x)/(y) =7`

`(x)/(7) =y`

`7y=x`