Generalized repunit (probable) prime search
This thread is for finding the smallest generalized repunit (probable) prime for a fixed base b, I have searched them for all bases 2<=b<=1024 and 1024<=b<=2, see the text files. Of course, I know that there is no generalized repunit prime in base b for some bases because of the algebra factors, all such bases are either perfect powers or of the form 4k^4. Besides, I have completed these ranges:
Positive bases:
b<=400 to n=50000.
401<=b<=512 to n=30000.
513<=b<=1024 to n=10000.
Negative bases:
b>=400 to n=50000.
512<=b<=401 to n=30000.
1024<=b<=513 to n=8000.
Also, I extended these searches for some smaller base b with no (probable) prime found, for positive bases, I completed b=185 to n=66337, b=269 to n=63659 and b=281 to n=63421, and for negative bases, I completed b=97 to n=59863, b=103 to n=59509 and b=113 to n=59021, all have still no (probable) prime found.
Last fiddled with by sweety439 on 20180503 at 21:30
