The smallest 8-digit number is?

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00000001

10000000

10000111

12345678

answer is B.

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Detailed Solution

Concept- We must first examine some of the number system's fundamental definitions in order to answer this question. The next step is to identify the number that follows the biggest 7-digit number and results in the smallest 8-digit number.
Assume that an is the given number. Consequently, a+1 will be a successor.
S stands for the successor function. So, S(n)=n+1
99,99,999 is the largest seven-digit number. The succeeding number 99,99,999

So the smallest 8-digit number is 10000000.
Hence,the correct answer is 2.

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