Maths type question

malef!c · 29 Aug 2009 at 20:21

Being a bit thick maths wise, thought I would ask you lot

If I have:

a - z lowercase
A - Z uppercase
0 - 9

How many different 6 character combinations could be made out of the available letters and numbers?

Everytime I try to work it out I bleed from my eyes

Cheers
M.

Cold_And_Miserable · 29 Aug 2009 at 20:22

62^6 combinations.

sloth · 29 Aug 2009 at 20:22

(26 + 26 + 10) = 62
62 * 62 * 62 * 62 * 62 * 62 = big number

n1kunj · 29 Aug 2009 at 20:23

If a character can be used any number of times it's:

62*62*62*62*62*62 = 56800235584

If a character can be used only once it's:

62*61*60*59*58*57 = 44261653680

Destination · 29 Aug 2009 at 20:24

26 + 26 +10 = 62

62^6 = 56,800,235,584

So roughly 56.8 billion combinations, assuming you are allowed to use the same character more than once, alittle more complex if you cannot.

malef!c · 29 Aug 2009 at 20:32

Cheers all - knew this place had some clever people stuck behind the boxes!

pingwing · 29 Aug 2009 at 20:46

Week 2 of alevel stats, permutations and combinations.....

Vixen · 29 Aug 2009 at 21:31

pingwing said:
Week 2 of alevel stats, permutations and combinations.....

A level?

I learned how to do this on my 2 day visit to high school when I was 11!

pingwing · 29 Aug 2009 at 22:41

Vixen said:
A level? I learned how to do this on my 2 day visit to high school when I was 11!

Yeah my secondary school was a bit urm poor.... (plus it wasn't on the gcse i took back in the day)