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Difficulty: 2 of 5 Latest: Why is it D2?
Find the smallest positive integer fitting the following description:

i. All its digits, except two, are sixes.
ii. It is prime.

Why is this puzzle D2?

(No Solution Yet, 4 Comments) Submitted on 2017-03-27 by Ady TZIDON   
Page 2 of 94   << prev next >>    
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Posted on 2016-10-17 by Ady TZIDON (No Solution Yet, 3 Comments)
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