If x is divisible by 20, 14, and 70, which of the following must be the least multiple of x?
Choose the correct choice from the following options: A) 70 B) 140 C) 210 D) 350 E) 700
We are looking for the LCM (which is not 0) of 20 = 2^2*5, 70 = 2*7*5, 14 = 2*7:   2^2 * 5 * 7 = 140   The answer is 140.
<result>B</result>
If x is divisible by 20, 14, and 70, which of the following must be the least multiple of x?