The total number of integers that are multiples of both 56 and 84 is infinite. Here are the first few: 168, 336, 504, 672, 840, 1008 . . .
The first five common multiples of 4 and 7 is 28, 56, 84, 112, 140.28, 56, 84, 112, 14028 56 84 112 140
28, 56, 84 and so on.
28, 56, 84.
28, 56, 84, 112, 140, 168, 196, 224, 252, 280, 308 Those are 11 multiples of 28.
Common multiples include 168, 336, 504 and so on.
They are 84, 84084 and 8484840084
56, 63, 70, 77, 84, 91, 98.
28, 56, 84, 112, 140.
28, 56, 84 and so on.
28, 56, 84, and so on.
28, 56, 84, 112, 140.
The multiples of 28 include 28, 56 and 84. For them to be common, they need to be compared to another set of multiples.