Quick Answer: How Many 6 Digit Numbers Are There In All?

What is the largest seven digit number with two digits the same?

Answer: The largest 7-digit number is 99,99,999..

How many 9 digit numbers are there in all?

There are 1 billion 9 digit numbers (000,000,000 through 999,999,999). There are 45 different combinations of two different numerals (10 x 9 divided by 2). There are 512 (2 to the 9th power) different permutations for any two numbers to be used in a 9 digit number.

Which is the smallest number?

In mathematics 2520 is: the smallest number divisible by all integers from 1 to 10, i.e., it is their least common multiple. half of 7!

Which is the 6 digit smallest number?

100000So, the smallest six digit number is 100000.

What is the greatest possible number?

You only have the digits 1,2,3,4,5 so the largest 3 digit number that you can make is 543 and the smallest 2 digit number you can make is 12. Thus the largest possible difference you can make is between 543 and 12 that is 543 – 12 = 531.

Why is a phone number 7 digits?

Telephone engineers created a 7-digit system for “all number calling” to expand their pool of possible number combinations. … Area codes were selected based on the population in that city, and the areas with the largest populations received codes that were easily dialed on a rotary phone.

How many 2 digit numbers contain the digit 7 only once?

Answer Expert Verified There are 18 two digit numbers containing 7. Solution: 7 is a unit digit and if we add 10 with it, it results a two digit number 17, just by changing the digit in the tenth place, contains 7. In this process, we find numbers 17, 27, 37, 47, 57, 67, 77, 87 and 97.

How many one digit numbers are there in all?

We know that all the numbers are formed with the digits 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0. Some numbers are formed with one digit, some with two digits and some with many digits. (i) There are 9 numbers of one digit. The smallest one-digit number is 1 (one) and greatest one-digit number is 9.

What is a 7 digit number called?

This number is called one million. The largest 7-digit number is 9 followed by another 6 nines. This number is called nine million nine hundred ninety-nine thousand nine hundred ninety-nine.

What is the largest 7 digit number?

99,99,999What is the greatest 7 digit number? The greatest 7 digit number is 99,99,999 which is read as Ninety nine lakh, ninety nine thousand, nine hundred and ninety nine.

What is the one digit smallest number?

In mathematics, these digits are said to be numerical digits or sometimes simply numbers. The smallest one-digit number is 1 and the largest one-digit number is 9.

What is the biggest two digit number?

a self number in base 10, since there is no integer that added to its own digits adds up to 97. the highest two digit number where the sum of its digits is a square.

Which is the smallest number of 3 digit?

100The smallest 3-digit number is 100 and the largest 3-digit number is 999.

Which is the largest 9 digit number?

There are 900 million 9 digit numbers.The smallest 9 digit number is 10,00,00,000 and it is read as ten crores.The largest 9 digit number is 99,99,99,999.

How many 2 digit numbers are there in all?

90 twoHow many two-digit numbers are there? There are 90 two-digit numbers in all.

Is 0 a digit number?

0 (zero) is a number, and the numerical digit used to represent that number in numerals. It fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems.

What is the 8 digit greatest number?

What is the largest 8 digit number? The greatest 8-digit number is 9,99,99,999 which is read as Nine crore, ninety-nine lakh, ninety-nine thousand, nine hundred and ninety-nine.

How many 7 digit numbers are there in all?

So total number of 7 digit numbers=9999999 – 1000000+1). Out of 9000000 numbers, 4500000 are having the sum of digits as even and the remaining 4500000 are having the sum of digits as odd. Every alternate number has its sum of digits even and odd. There are 9000000 seven digit numbers.