The concept of common multiples refers to integers, not decimals.
195, 390, 585 and so on.
Multiples of 26 include 26, 52, 78 and 104. For them to be common, they need to be compared to another set of multiples.
Any multiple of 312
52, 104, 156
They are: 52, 104, 156.
Multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52... Multiples of 13 are 13, 26, 39, 52, 65, 78, 91, 104... Common multiples of 4 and 13 are 52, 104, 156...
936, 1872, 2808, 3744, 4680, 5616 +936 . . .
The first 10 multiples of 13 are: 13, 26, 39, 52, 65, 78, 91, 104, 117, and 130.
26 = 26, 52, 78 52 = 52, 104, 156
195, 390, 585 and so on.
Factors: 1, 2, 4, 8, 13, 26, 52, 104 Multiples: 104, 208, 312 and so on.
Lcm of 104 and 13?