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Sum of two powers (Posted on 2004-08-12) Difficulty: 4 of 5
If n is an integer, show that n4 + 4n is never a prime for n>1.

See The Solution Submitted by Federico Kereki    
Rating: 4.2500 (4 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: a start | Comment 3 of 7 |
(In reply to a start by Charlie)

haha I got the same result but I was pounding on the "5" case while you posted first t.t


  Posted by Bon on 2004-08-12 14:51:04
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