Question

Find the least number of 5 digits which is exactly divisible by 12 15 and 18

Answer 1

LCM of 12,15 & 18 = 180

if you divide 10000 by 180
$180)10000(56 \\ \: \: \: \: \: \: \: \: \: \: 900 \\ \: \: \: \: - - - - - \\ \: \: \: \: \: \: \: \: \: \: \:1000 \\ \: \: \: \: \: \: \: \: \: \: \: 1080$
here we see 1080-1000=80

least number of 5 digits which is exactly divisible by 12 15 and 18 = 10000+80=10080