6
It will contain at least 12 digits
04,14,24,34,40,41,42,43,44,45,46,47,48,49,54,64,74,84,94.... OR 19 Digits
All of them are significant.
172
6
It will contain at least 12 digits
04,14,24,34,40,41,42,43,44,45,46,47,48,49,54,64,74,84,94.... OR 19 Digits
All of them are significant.
172
18.
California inmate ID numbers contain six digits.
Most credit cards in the United States contain 16 digits broken into four groups of four digits. American Express cards contain 15 digits, however.
There are nine numbers which contain only one digit. There are 90 numbers which contain two digits. There are 900 numbers which contain three digits. There is one number which contains four digits.Therefore, the number of digits is equal to (9x1)+(90x2)+(900x3)+4 = 2893 digits. If this includes spaces, there would be 999 spaces, therefore there would be 3892 keystrokes.
If the number can contain repeated digits, the answer is 800000. Without repetition, there are 483840.
Routing Number: 9 Digits Account Number: Depends on Bank
1