= (1-36^8+1)/(1-36)
= (1-36^9)/(1-36)
= -101559956668415/-35
= 2901713047669
Sorry, I'm new here and don't know how to use the proper maths characters yet.
Hi Mentallic!
Thanks for your help, it all makes perfect sense!
One thing I'm not quite sure on though...
When I use the formula you provided at the bottom of your response, I get the answer:
2901713047669
However when I manually calculate 36+36^2+...+36^8 I get the answer...
Hi. I need a little help.
I'm trying to work out how many combinations of characters there are for a string that is between 1 and 8 characters long and uses a-z (non caps) and 0-9. There are 36 useable characters and the string could be anything from simply 'a' to '99999999'. I was able to...