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It is 99,999,999,999,999,999,999 (ninety-nine quintillion, nine hundred ninety-nine quadrillion, nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine).

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Q: What is the largest 20 digit number?
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Related questions

What is a two digit number which has the difference of the 2 digits equal to your largest single digit?

21 and 20


What is the largest three digit number whose digits add to 20?

992


If you add a two digit number to a two digit number do you get a four digit number?

No. When adding the smallest 2 digit number (= 10) to the smallest 2 digit number (again, 10) the result is a 2 digit number (10 + 10 = 20). When adding the largest 2 digit number (= 99) to the largest 2 digit number (again, 99) the result is a 3 digit number (99 + 99 = 198). As you can see, you'll either get a 2 or 3 digit number, but never a 4 digit number.


What is the largest 3-digit number?

999 is the largest 3-digit number.


What is the largest two-digit prime number?

9797 is the largest two digit prime number.


What is the product of the largest single-digit prime number and the largest two-digit prime numbers?

679 is the product of the largest single-digit prime number and the largest two-digit prime number.


Smallest eight digit number to the largest eight digit number?

10,000,000 is the smallest 8 digit number 99,999,999 is the largest 8 digit number


What is the largest number of 8 digit number?

The largest 8-digit number is 9,999,999.


What is the largest 4 digit number with repetition?

The largest 4 digit number is 9999.


What is the largest one-digit number and the largest two digit number?

9 and 99


What is the largest 10 digit number with no repeated digits?

The largest 10-digit number with no digit repeated is 9876543210 !


What is the smallest and largest 4 digit number?

The smallest 4-digit number is 1000, and the largest 4-digit number is 9999.