Question

In each of following numbers, replace (*) by the smallest number to make it divisible by 3: 1 ... 4*1042​

Answer 1

Given number => 54*106

We have to replace * with such a number that this number should be divisible by 3.

We know that,

If the sum of the digits of a number is divisible by 3 then the number will be divisible by 3.

Here,

5+4+1+0+6 = 16

So, to make it divisible, we have to place 2 in place of *.

then the sum become 18.

Thus the number will 542106.

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