Chat with our AI personalities
8
-5
Check online or use home resources. But a specific, anonymous, right answer is 8.
There are not 99999999 eight digit numbers - unless you allow numbers with leading 0s.
You can select 9 numbers for the first digit, 8 numbers for the second digit, and 7numbers for the third digit; so 504 (e.g. 9*8*7) different three digit numbers can be written using the digits 1 through 9.