2160
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720
36. 216 = 23 x 33 144 = 24 x 32 180 = 22 x 32 x 5 gcf = 22 x 32 = 36
The LCM of 81 and 216 is 648.
The LCM is 144.
Kayla counted by a common difference of -18 in her multiple tower sequence. This means she subtracted 18 from each number to get the next number in the sequence. The pattern can be expressed as 216, 198, 180, 162, 144.