perplexus.info :: Just Math : Three Power Verification

Three Power Verification (Posted on 2016-01-20)

M is a positive integer such that 4^M + 2^M +1 is a prime number.

Can there be any instance where M is not a power of 3?

Give reasons for your answer.

No Solution Yet Submitted by K Sengupta

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Subject	Author	Date
Proved in 1978	Brian Smith	2016-01-21 11:01:09
re(2): Solution	broll	2016-01-21 09:21:05
re: Solution	Jer	2016-01-21 07:49:36
Solution	broll	2016-01-20 22:28:29

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