1
There are none, they are prime numbers.
44, 88, 132 and so on.
77
77, 154, 231 and so on.
77
Since 14 is a multiple of 7, all of its multiples are common.
The least common multiples of 7 and 14 are 14,28 and 42>
There is an infinite number of common multiples for these numbers!
Multiples of 7 include 7, 14, 21, 28 and so on. For them to be common, they need to be compared to another set of multiples.
385
154
The common multiples of 3 and 7 are 21, 42, 63 and so on.