252, 504, 756 . . .
252, 504, 756 and so on.
There are infinitely many of them so they cannot be listed. One of their multiples is 294*252*210 = 15558480.
The first 15 multiples of 252: 252, 504, 756, 1008, 1260, 1512, 1764, 2016, 2268, 2520, 2772, 3024, 3276, 3528, 3780 . . .
252 and its multiples.
252
Oh, isn't that just lovely? Multiples of 84 are numbers that you get when you multiply 84 by another whole number. So, if you start at 84 and keep adding 84, you'll get multiples like 168, 252, 336, and so on. Just imagine all those beautiful multiples stretching out like a happy little path in your mathematical landscape.
84, 168, 252.
Any multiple of 252.
84, 168, 252
No, they are factors.
126, 252, 378