142857 

This is a very interesting number. Multiplying it by a number from 1 to 6 will give the result of the same numbers in the same order, but with a different offset. Like
142857 * 2 = 285714
142857 * 3 = 428571
This number also seems to have interesting relations with number 7. Multiplying it by 7 will give 999999. One seventh is 0.142857142857142857... Any number that isn't evenly divisible by 7 divided by 7 will give a result with decimals that end up with 142857 repeating itself endlessly.

Examples:

142857 * 2 = 285714
142857 * 3 = 428571
142857 * 4 = 571428
142857 * 5 = 714285
142857 * 6 = 857142

142857 * 7 = 999999
1/7 = 0.142857142857142857...
43 / 7 = 6,142857142857142857...
74 / 7 = 10,57142857142857...

142 + 857 = 999

142857 by chstrike June 13, 2004