Tuesday, June 2, 2009

142857 is a cyclic number!

Something interesting!

Not really a joke ... just a tiny bit of math fun.

142857 is a cyclic number - its digits always appear in the same order but will rotate around when multiplied by any number from 1 to 6:

142857 x 1 = 142857

142857 x 2 = 285714

142857 x 3 = 428571

142857 x 4 = 571428

142857 x 5 = 714285

142857 x 6 = 857142

Pretty cool, huh? Now multiply 142857 by 7

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2 comments:

le bateleur said...

it's because
1/7 = 0,142857
(je ne parle pas très bien l'anglais)
you can see here a wheel
http://www.geombre.com/article-793846.html

बिजय मिश्र said...

Thanks.

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