How many 6 digit numbers are there in all?

Numbers up to 6 digits are natural numbers that have the place value till hundreds, thousands, or lakhs.

Answer: There are 9,00,000 (nine lakh) 6-digit numbers in all.

In the 6-digit numbers, the highest place value is 1,00,000 which has a unique name in the Indian numeral system – a lakh.

Explanation:

To find the total number of 6-digit numbers, let's first find the smallest and the largest 6-digit number.

Smallest 6-digit number: 1,00,000

Largest 6-digit number: 9,99,999

Total number of 6 digit numbers = (9,99,999 - 1,00,000) + 1 = 9,00,000 

Therefore, there are 9 lakh 6-digit numbers in all.