[quote=EdH;197960]I ran across a couple of new prime factors for iteration 574 of number 730536 while playing with a C++ program I'm writing and playing with. Those factors are:

12541 and 71670491

I really have no easy way to verify my findings, so I don't know if they are valid.[/quote]
They are. [URL]http://factordb.com/search.php?se=1&aq=730536&action=range&fr=574&to=574[/URL] Syd's DB is already well past iteration 574 for aliquot sequence [URL="http://factordb.com/search.php?se=1&aq=730536"]730536[/URL]. [color=blue][b]10metreh:[/b] But it wasn't when EdH posted.[/color]
[quote=EdH;197960]Do new factors get tested when entered?[/quote]
Yes. The DB always checks that new factors do indeed divide the number, and will simply ignore any factors that don't work. It will also calculate the remaining portion and whether that is composite or prime.

Done with 730224, 100 digits, 2*3

done with 730428: size 100, 2^4*3*31
reserving 735294, 735960, 736002, 736680, 737490, 737640, 738528, 738678, 739398, 739788.
735966 is done for the subproject

unreserving 730260 at size 100, [COLOR="Red"]2²*7[/COLOR]

reserving 734052

Done with
730536, 730680, 731208, 731232, 731424, 731500, 731562,
735096, 736794, 736820, 736938, 737550, 738072, 738288,
and 650496 (because 736938 merged in it)

[URL="http://factordb.com/aliquot.php?type=1&aq=731208"][SIZE=1]731208[/SIZE][/URL][SIZE=1] extended from i362 to i3,831 (after reaching 100-digits already at i419)... too bad.[/SIZE]
[SIZE=1][/SIZE]
[SIZE=1]I'll keep 737550 reserved for the other thread.[/SIZE]

Reserving
739032, 739152, 739254, 739302, 739464, 739686, 739920

Done with 733800, 102 digits, 2^2*3*7
Keeping 733866 reserved at 114 digits (so done for project). It has the guide 2^11*3*5*7 which is 5 factors of 2 short (the full guide 2^11*3*5*7*39 is only 2 short so just misses being a driver).

unreserving 734052; i=638, sz. 101, [COLOR="Red"]2²*3*7[/COLOR]

[quote=Greebley;198194]Done with 733800, 102 digits, 2^2*3*7
Keeping 733866 reserved at 114 digits (so done for project). It has the guide 2^11*3*5*7 which is 5 factors of 2 short (the full guide 2^11*3*5*7*39 is only 2 short so just misses being a driver).[/quote]
Err. Ignore the full guide statement - it is wrong.

Taking 736944, 737034, 737160, 737240, 737664