Alexander Kruppa wrote:
>
> Hi,
>
> M131071 has a factor: 14899621191992882743
>
> That wan't hard. But one thing puzzles me:
>
> P-1 = 2*3*61*6229*131071*49861943
>
> The factor was found after stage 1 with a limit of 500000 - how can it
> find a factor which is 1 mod (49861943) ? Another magic trick by George?
No, it's because you're stupid! This new factor is really two old
factors in disguise:
231733529 * 64296354767 = 14899621191992882743
and that explains nicely why they were found with B1=500000:
231733529 = 2*2*2*13*17*131071+1
64296354767 = 2*7*37*947*131071+1
I should try to remember keeping my lowm.txt file updated.
Ciao,
Alex.
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