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)

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| Comment 2 of 7 |

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erroneous addition erased by Ady

Edited on March 25, 2014, 9:20 am

Posted by Ady TZIDON on 2014-03-23 09:50:51

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