142857
Posted September 9th, 2007 by Isoscel
The number 142857 has some very interesting properties. It is very easy to remember how to multiply it with 2, 3, 4, 5, 6, 7 and even bigger numbers.
142857 * 2 = 285714
142857 * 3 = 428571
142857 * 4 = 571428
142857 * 5 = 714285
142857 * 6 = 857142
142857 * 7 = 999999
The results after multiplication with a number from 2 to 6 gives circular permutations of the original number.