721386 is done for the subproject, but I keep it (driverless !)
index 1254 - 102 digits - 2^3

Done 722250, 722688, 727110

Reserving 729000

721764 is done for the subproject, but I keep it (driverless !)
index 1264 - 101 digits - 2^6 * 7

done with 723834
reserving 725160

721518 is done for the subproject, but I keep it to run it further
index 1099, 101 digits, 2^3 * 3 * 7

done with 725160
reserving 725490

done with 725490
reserving 725592

727056 has reached 100 digits, without any driver (2^4 * 3), at index 1767. A few iterations later, the 3 is gone and the sequence is continuing just below 100 digits.

I keep it to run it further.

Done 727536, 727770

Reserving 727812, 727836, 728280

Done with 728610, index 1312, 103 digits, 2^4 * 31

reserving 729480