180 = 45*4 and 20*9.
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The LCM is 20.
It is: 20
The least common multiple is the smallest number that is multiple of two or more numbers. The LCM of 2, 4, and 5 is 20.
20
lcm(16, 20, 15) = 240. 16 = 2^4 20 = 2^2 x 5 15 = 3 x 5 lcm = 2^4 x 3 x 5 = 240