In 2011, the estimated population of Canada was 34 699 000. If the government wants to use an alphabetic string using letters of the alphabet for every person in Canada. How long should the string of letters (repetition allowed) be so that every person in Canada can have a unique code?

1 answer

would 4 letters be enough?
26^4 = 459976 , no
how about 5 letters ?
26^5 = 11,881,376 , not enough

26^6 = 308,915,776
That will do it.

The string must be 6 letters long