Question

345n3 is a multiple of 3, find least value of 3

Answer 1

Answswer:

3+4+5+n+3=n+15.

Put n=1,it will be 16 not divisible by3.

Put n=2,it will be 17 not divisible by 3.

Put n=3,it will be 18 which will be divisible by 3.

So n=3.

34533 is the least number which will be divisible by 3.