28. The least common multiple (LCM) is defined as the smallest number that is a multiple of two numbers.
The LCM of a single number is that number, so the LCM of 28 is 28.
In general, an LCM is derived from more than one number.
You need at least two numbers to find an LCM. If that's 2 and 8, the LCM is 8.
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