They are all multiples of 1.
There are 12 multiples of 8 in 1 to 100.
There are 5 multiples of 9. There are 4 multiples of 12. There is 1 number that is a multiple of both, 36.
All of them.
Every number has 1 as a factor.
There are 3,333 multiples of three that fall between 1 and 10,000.
11
333
Nine of them.
50 of them.
None.
Oh, dude, you're really making me use my brain cells for this one. So, between 1 and 100, there are no even numbers that are multiples of 3. I mean, like, it's just not a thing. So, the answer is a big fat zero. But hey, at least now you know, right?