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Old 2017-04-17, 11:54   #3
WhoCares
 
Apr 2017

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Quote:
Originally Posted by Nick View Post
No number of the form \(10^n+7\) is divisible by 11.
See, for example, these tests:
https://en.wikipedia.org/wiki/Divisibility_rule
I think u get me wrong. I said only n is divisible by 11.
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