perplexus.info :: Just Math : Sum of two powers

Sum of two powers (Posted on 2004-08-12)

If n is an integer, show that n⁴ + 4ⁿ is never a prime for n>1.

See The Solution Submitted by Federico Kereki

Rating: 4.4000 (5 votes)

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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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