36, 72, 108.
126, 252 and 378.
36, 72, 108
They are: 36, 72, 108.
90, 180, 270
63, 126, 189.
The first nine multiples of 3.14 are 3.14, 6.28, 9.42, 12.56, 15.7, 18.84, 21.98, 25.12, 28.26 For them to be common, they need to be compared to another set of multiples.
9, 18, 27
72, 144, 216
72 and 144
36, 72, 108
One and three are the only multiples of six and nine.
99, 198, 297, 396, 495.