The Smallest 7- Digit Number is ______

The correct answer is C. Either A or B.

A 7-digit number consists of exactly seven digits. The smallest such number is 10,00,000 (ten lakh in the Indian numbering system or one million in the international system).

Alternatively, the greatest 6-digit number is 9,99,999. Adding 1 to this gives:

9,99,999 + 1 = 10,00,000

Thus, option B (1 + greatest 6-digit number) is also correct. Hence, the right choice is C. Either A or B.

Breaking Down the Concept Further

Number Type	Example
Greatest 6-digit number	9,99,999
Smallest 7-digit number	10,00,000
Largest 7-digit number	99,99,999
Smallest 8-digit number	1,00,00,000

Fun Fact

Did you know? One million (1,000,000) is written as “ten lakh” in the Indian numbering system. This difference between number systems often confuses students, making it essential to practice regularly.

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