What is the least common multiple of 55,75,and 115

 The least common multiple of the given numbers
=> 55
=> 75
=> 115

First, let’s decompose or find the prime factors of each numbers
=> 55 = 5 x 11
=> 75 = 3 x 5 x 5 or 3 x 52
=> 115 = 5 x 23
Now, we have the common prime factor which is 5.
The uncommon prime factors which are  11, 3 and 23
And the greatest exponent = 52

LCM = 52 x 11 x 3 x 23
=> 18, 975