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Composite? Yes. (Posted on 2010-08-24) Difficulty: 3 of 5
Prove that (258+1)/5 is a composite number.

No Solution Yet Submitted by Ady TZIDON    
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Well, give me a second... solution | Comment 1 of 3
All we have to do is factor 57,646,075,230,342,349.  Surely that is simple:  107,367,629  *  536,903,681.  I probably used the same method as Ady.
  Posted by ed bottemiller on 2010-08-24 18:05:21
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