142857 is a cyclic number !

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142857 is a cyclic number, the numbers of which always appear in the same order but rotated around when multiplied by any number from 1 to 6. 

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