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Anonymous
The GCF of 27 and 81 is 27. And their LCM is 81.
Wiki User
The LCM is 405.
gcf(81, 36) = 9 gcf(27, 54) = 27 gcf(81, 36, 27, 54) = 9
The LCM is: 2,025
27
81; each number is a factor of 81, and it is the smallest you can get.