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Is it, or is it not? (Posted on 2007-04-10)

Is (2⁵⁸+1)/5 an integer? A prime?

See The Solution Submitted by Federico Kereki

Rating: 3.6667 (3 votes)

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re: Just a simple pattern ....not true

| Comment 8 of 13 |

(In reply to Just a simple pattern by Nishant)

not true .....

out of your list only 13 is a prime

e.g.

16385=113*29*5 is composite and so are the others

Posted by Ady TZIDON on 2007-04-10 17:51:51

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