perplexus.info :: Just Math : Factorial-Square Sum

Factorial-Square Sum (Posted on 2014-03-23)

Determine all possible triplets (X,Y,Z) of positive integers that satisfy:

X!*Y! = X! + Y! + Z²

Prove that there are no others.

See The Solution Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re(2): more

| Comment 6 of 7 |

(In reply to re: more by Charlie)

More was less....

Posted by Ady TZIDON on 2014-03-23 13:18:27

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