quantitative comparison

**philipskaren** · 03-19-2003, 07:06 PM

the least positive integer that is divisible by both 18 & 24

or

the least positive integer that is divisible by 18 & 28

i wanna how'd u solve it quickly???

**ss6872** · 03-19-2003, 08:08 PM

The problem demands you to find the least common multiple. the quickes way to to do, since these are small numbers is to prime factorize the 3 numbers and find the lcm.
for, 18 and 24 it is 72 while for 18 and 28 it is 252 , so column B is greater.