Question

determine nearest to 1 lakh which is exactly divisible by 8,15,21​

Answer 1

First find the L.C.M of 8,15,21

So,

LCM of 8,15,21 is 840

So ,

$840)100000(126 \\ - -840 - \\ - - - 2200 \\ - - - 1680 \\ - - - - 520 0 \\ - - - - 5040 \\ - - - - - 160$

now remainder is 160 so

Subtract remainder from divident

100000-160

=99840

Hope this will help you