The common multiples will depend upon the other number(s), but will always be one of the multiples of 56 which are:
56, 112, 168, 224, 280, 336, 392, 448, 504, 560, 616, 672, 728, 784, 840, 896, 952, 1008, 1064, 1120, 1176, 1232, 1288, 1344, 1400, 1456, 1512, 1568, 1624, 1680, 1736, 1792, 1848, 1904, 1960, 2016, 2072, 2128, 2184, 2240, 2296, 2352, 2408, 2464, 2520, 2576, 2632, 2688, 2744, 2800, 2856, 2912, 2968, 3024, 3080, 3136, 3192, 3248, 3304, 3360, 3416, 3472, 3528, 3584, 3640, 3696, 3752, 3808, 3864, 3920, 3976, 4032, 4088, 4144, 4200, 4256, 4312, 4368, 4424, 4480, 4536, 4592, 4648, 4704, 4760, 4816, 4872, 4928, 4984, 5040, 5096, 5152, 5208, 5264, 5320, 5376, 5432, 5488, 5544, 5600, ...
The common multiples of 7, 8, and 8 are the infinite set that includes any multiple of 56. The common multiples are thus 56, 112, 168, 224, 280, and so on.
The LCM is 56.
28, 56, 84, 112, 140
12, 24, 36, 49, 60, 72, 84 28, 56, 84
Common multiples include any multiple of 7182.
No, 2 and 28 are not multiples of 56, they are factors.
The common multiples of 7, 8, and 8 are the infinite set that includes any multiple of 56. The common multiples are thus 56, 112, 168, 224, 280, and so on.
56
56
The multiples of 28 include 28, 56 and 84. For them to be common, they need to be compared to another set of multiples.
1 All the common multiples of 56 and 60 are: 1,2,4
lcm(2, 7) = 14 → first 3 common multiples are: 14, 28, 42; lcm(2, 8) = 8 → first 3 common multiples are: 8, 16, 24; lcm(7, 8) = 56 → first 3 common multiples are: 56, 112, 168; lcm(2, 7, 8) = 56 → first 3 common multiples are: 56, 112, 168.
840
56
56
Common multiples include 1512, 3024, 4536 and so on.
LCM(21, 49, 56) = 1176