There is an infinite number.
There are 12 multiples of 8 in 1 to 100.
12 of them.
There are 5 multiples of 9. There are 4 multiples of 12. There is 1 number that is a multiple of both, 36.
There are 12.
12
12 is in all multiples of 12.
The multiples of 246 and 12 are 492 and all the multiples of 492.
12 of them.
32 of them.
One
There are none.
No number has the exact same multiples. Factors and multiples of 12 will have some of the same multiples.