Done:
715518 (iteration=968, 100 digits)
715776 (iteration=1202, 100 digits)
717952 (iteration=741, 103 digits)

Releasing [code]716660 1066. 2^4 * 31 c84 sz 98[/code] as I am going away from home.

[quote=10metreh;194302]Releasing [code]716660 1066. 2^4 * 31 c84 sz 98[/code] as I am going away from home.[/quote]
I'll take it the rest of the way.
Edit: Done.

707430 has reached 100 digits at index 1202; but has ever no driver (2^2 * 3^2 * 41^2 * 83...)

I keep 707430 and will work on it when I'll have finished 714384 and 718080 up to 100 digits. :smile:

done with 717052 - size 111, 2^5*3^2 guide

on 714868:
"Sequence merges with earlier sequence 507374."
i think this is a type of termination, right?

reserving 715152

739368 merges with 39852
 

739368 merges with 39852
(a bit of prefetching; a dozen other sequences extended to c100)

715152 done
reserving 715440

Done with 713538, 106 digits, 2^2*7

Reserving:
719180, 719208, 719310, 719580, 719712, 719880

done with 715440
reserving 715590

Reserving 716142