Newest [COLOR="Red"][B]Generalized Woodall[/B][/COLOR] (Serge and Ryan seem to be on a roll)

Congratulations! Ranks as 21st largest prime.

479216 · 3[SUP]8625889[/SUP] - 1 . 4115601 digits. (relatively close to the October one)

Canonical form:
1437648 · 729[SUP]1437648[/SUP] - 1

I am I right in thinking the "canonical form" is quicker? It is taking a fair time to verify at UTM on a single core. :smile:

No, they are just using the abacus to check it.
[SPOILER](Well, seriously, they are running a 1-threaded PFGW for some legacy reason... when base>2?)[/SPOILER]

UTM confirmed it prime in "10.21 days" -- how long did it take you, Serge?

llr, 16 (or 32) threads, ~1 day