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Old 2020-10-25, 20:23   #3
rogue
 
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"Mark"
Apr 2003
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Must not be too deeply searched. A pfgw script to b = 1000 yields the PRPs (944-1)*944^(944-1)-1 and (1622-1)*1622^(1622-1)-1

Here is the script. Use -f to trial factor before PRP testing.

ABC2 ($a-1)*$a^($a-1)+1 | ($a-1)*$a^($a-1)-1
a: from 1 to <whatever limit you want>

Running to a higher value to see if anything else shows up.

Last fiddled with by rogue on 2020-10-25 at 20:24
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