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Old 2007-04-12, 11:04   #8
akruppa's Avatar
Aug 2002

1001101000112 Posts

It does not save the highest B2 value tried so far anywhere, you'll have to specify the B2 range you want to do manually each time.

Where exactly the factor p with largest factor in p-1 around 2.5e14 will be found is hard to tell, due to the Brent-Suyama extension.
With -power 2, it will be as you suggested. However, if the B2 value is much higher than 2.5e14, it might be included as a composite value, i.e. if q*2.5e14 is in your B2min-B2max range for some q that does not divide d1*d2.
With Brent-Suyama, all bets are off... the missing prime in p-1 might be included pretty much at any time during stage 2, if you're lucky. But it is still true that if the missing prime is in B2min-B2max, it will be included in any case, and the factor will be found.


Last fiddled with by akruppa on 2007-04-12 at 11:05
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