70, 140, 210
14, 28, 42
They are: 14, 28 and 42
The first 3 multiples of 9 are: 9, 18, and 27.The first 3 multiples of 12 are: 12, 24, and 36.
If you mean the common factors of 14 and 16, they are 1 and 2. The common multiples of 14 and 16 are 112, 224, 336 and so on.
If that's 9, 14 and 21, the first three common multiples are 126, 252 and 378.
14, 28, 42.
14, 28, 42.
14, 28 and 42
14, 28, and 42
42, 84, 126
14, 28, 42
7, 14, 21
42, 84, 126
14, 28, 42
126, 252, 378
70, 140, 210 and so on.