View Single Post
Old 2016-03-15, 20:55   #10
NorbSchneider's Avatar
Jul 2014

5·19 Posts

I search PRPs of the form y^x-x^y.
I made a webpage to these PRPs, you can find the page at
Andrey Kulsha's site contains y^x+x^y PRPs, the URL is:
y^x-x^y PRPs exists much more than y^x+x^y PRPs.
For example to x= 5000 894 y^x-x^y and 426 y^x+x^y PRPs,
x=10000 1530 y^x-x^y and 787 y^x+x^y PRPs.
I have all the y^x-x^y PRPs to x=10800, and a few for higher x values.
Are you interesting to join me searching the y^x-x^y PRPs?
NorbSchneider is offline   Reply With Quote