Question

Is the number a multiple of 8? Write yes or no. 4, 8, 20, 40.WHAT IS MULTIPLE

Answer 1

Consider two integers
`x,y`. We say that
`x` is a multiple of
`y` if
`x` is evenly divisible by
`y`:

`(x)/(y) = k,\quad x,y,k \in \mathbb{Z}`

Alternatively, we can say that
`x` is a multiple of
`y` if there exists an integer
`k` such that
`x = ky`

So:

• 4 is not a multiple of 4, because 4/8 is not an integer.
• 8 is a multiple of 8, because 8/8=1
• 20 is not a multple of 8, because 20/8 is not an integer
• 40 is a multiple of 8, because 40/8=5