2, 3 and 12.
336, 672, 1008, 1344 +336 . . .
48, 96, 144, 192, 240, 288, 336 +48 . . .
48, 96, 144, 192, 240, 288, 336, 384, 432, 480 +48 . . .
The LCM of 48 and 7 is 336
48
The first number that 12 and 16 go into is 48.
Yes.
336, 672, 1008, 1344, 1680 +336 . . .
24, 48, 72, 96, 120, 144 +24 . . .
24, 48, 72, 96, 120, 144, 168 +24 . . .
112, 224, 336, 448 +112 . . .
Any Multiple of 24. 24, 48, 72, 96... Etc.. Hope I helped!