perplexus.info :: Just Math : Another Remainder Puzzle

Another Remainder Puzzle (Posted on 2007-01-25)

Given that a, b and c are positive integers satisfying the equation:

3^a + 5^b = 7^c + 1.

Derive mathematically the possible remainders when a and c are separately divided by 4.

See The Solution Submitted by K Sengupta

Rating: 4.0000 (1 votes)

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re: A partial solution? (spoiler) ....what if...

Comment 2 of 2 |

(In reply to A partial solution? (spoiler) by Steve Herman)

and what if a=b=c=1??

3+5=7+1

ady

Posted by Ady TZIDON on 2007-01-30 09:55:05

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