On Thu, 19 Nov 2009 09:29:40 +0000 (GMT), "Dave Liquorice"
wrote:

On Thu, 19 Nov 2009 08:45:08 +0000, Bruce wrote:

The GE Slimline KeySafe can use up to 7 digits, giving 10 million
possible combinations.

Assuming you can use one number more than once. If you can't it
significantly reduces the number of combinations. I expect there is a
clever bit of maths that given the length of the code, number of
allowed characters per position and max number of reuses would tell
you the number of combinations available.


10*9*8*7*6*5*4 = 604,800 combinations from 7 digits.