Just write an odd digit in the one's position, and repeat that digit in the ten's position.
How about: 66/6 = 11
what is the greets possible 9 digit number that uses each of the digits 1-3 times
DHL and aramex.
87543001
Octal.
1133,
987
990
Bank of America uses a nine digit number for their bank accounts. Each person has their own account and has different numbers.
222335
5,040Assuming that the combination uses ALL single digits from 0 to 9, then for the first digit you will be able to use all 10 numbers, for the second digit you will be able to use 9, for the third digit 8 and for the last digit 7, giving a total number of combinations of 10 x 9 x 8 x 7 = 5,040 without the same number being used more than once in each combination.
7532