- What is the greatest 3 digit number?
- Will we run out of phone numbers?
- What is the smallest 3 digit number with unique digits?
- What is a greatest number?
- How many 3 digit numerals are there in all?
- How many area codes ABC would be possible if all three digits could be any value 0 9?
- What are the 3 digits after area code called?
- How many different 3 digit area codes can be created if no digit can be repeated assume all area codes are possible?
- What is the most famous number?
- How many different area codes are possible?
- What is a 3 digit?
- How many phone numbers exist?

## What is the greatest 3 digit number?

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

## Will we run out of phone numbers?

With ten digits, assuming a non-zero first digit, you can have 9,000,000,000 phone numbers. … This means, given the current population, you have to give out about 29 numbers to each person to run out. As for when the US will run out of phone numbers, the expected population in 2050 is only 438 million [1].

## What is the smallest 3 digit number with unique digits?

102what is mean by unique number? Smallest 3-digit number is 102 with unique digits.

## What is a greatest number?

A googol is a 1 with a hundred zeroes behind it. We can write a googol using exponents by saying a googol is 10^100. The biggest named number that we know is googolplex, ten to the googol power, or (10)^(10^100). That’s written as a one followed by googol zeroes.

## How many 3 digit numerals are there in all?

How many 3 digit numbers are there? There are a total of 900 three-digit numbers.

## How many area codes ABC would be possible if all three digits could be any value 0 9?

1,000If all three digits could be 0 – 9 then there are 1,000 possible area codes. the first digit can be 0–9 so that’s 10 choices. the second digit can be 0–9 so that’s another ten making a total of 100 choices.

## What are the 3 digits after area code called?

A telephone prefix is the first set of digits after the country, and area codes of a telephone number; in the North American Numbering Plan countries (country code +# ), it is the first three digits of a seven-digit phone number, 3-3-4 scheme.

## How many different 3 digit area codes can be created if no digit can be repeated assume all area codes are possible?

1 Expert Answer There are 10 digits 0 1 2 3 4 5 6 7 8 9 if we can’t use 0 and 1 then there are only 8 choices for the first digit and only 2 choices for the second digit and 10 for the third so there are 8*2*10 =160 possibilities.

## What is the most famous number?

10 Famous Numbers911 is most recognizable as the number to call for emergencies. … 7 is the number most commonly designated as people’s favorite. … 73 is Sheldon Cooper’s favorite number (on the TV show The Big Bang Theory). … 10 is most famous because it’s usually the number of items on “top” or “most” lists!More items…

## How many different area codes are possible?

800 possibleA. There are 800 possible combinations associated with the area codes. See the numerical list of area codes that are used today.

## What is a 3 digit?

A three-digit number is such that its second digit is the sum of its first and third digits.

## How many phone numbers exist?

Therefore, the total number of possible phone numbers is 7,970,000,000.