11-13-2009, 07:59 AM
EricFG Wrote:Maybe Marc(2) could help with that. I never could get a grasp much past algebra.
just to kibitzm
a) my guess is that it is a date. that is what i thought when i first looked at it, i thought it reminded me of a library stamp.
b) 8 positions with 9 possible numbers each represents 43,046,721 combinations
(assuming no zeros. if there is a zero on all of the dials then there are 100,000,000 combinations) this assumes that 12345678 is different from 8765421.
:-D hope this helps
