perplexus.info :: Just Math : Some factorial and some power

Some factorial and some power (Posted on 2024-03-26)

Find all possible non-negative integer solution (x,y) of the following equation

x! + 2^y = (x+1)!

No Solution Yet Submitted by Danish Ahmed Khan

Rating: 3.0000 (1 votes)

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re: No Subject

Comment 5 of 5 |

(In reply to No Subject by Jeffrey Warner)

How do you know that y=x/2 is a solution to the given equation? How does that follow from 'chimney inspection.'?

Edited on March 28, 2024, 12:32 am

Posted by K Sengupta on 2024-03-27 12:54:42

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