Ok, thanks. I noticed PPS sieve finds factors relatively often.
I have 1.2 factors per 9E9 primes. With 321 Sv I found 0.016 factors per 1E10 primes.
Since 321 Sv is only at 90P and PPS Sv already at 550P I would assume other way around. Are there that much more candidates in the PPS sieve? 321 Sv had 3E6 candidates a few months back.
Or is it because n-value of PPS Sv is lower? Though large n-value should result in less primes, i.e. more factors.
The 321 Sv stderr output is much more versatile, so that's where I got those stats from. ;)
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 5,700,000