Art of Problem Solving

AoPS Online

2016 AMC 8 Problems/Problem 20

Revision as of 09:10, 23 November 2016 by Ampy1234 (talk | contribs) (Created page with "The least common multiple of <math>a</math> and <math>b</math> is <math>12</math>, and the least common multiple of <math>b</math> and <math>c</math> is <math>15</math>. What...")

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

The least common multiple of $a$ and $b$ is $12$ , and the least common multiple of $b$ and $c$ is $15$ . What is the least possible value of the least common multiple of $a$ and $c$ ?

$\textbf{(A) }20\qquad\textbf{(B) }30\qquad\textbf{(C) }60\qquad\textbf{(D) }120\qquad \textbf{(E) }180$

Solution

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=2016_AMC_8_Problems/Problem_20&oldid=81337"

© 2024 AoPS Incorporated