Thread: W T F(actor)...
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Old 2018-05-15, 19:50   #2
GP2
 
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Sep 2003

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It's a genuine factor.

However Mersenne.ca has date of discovery = blank, so it must have been known. Strange.

Edit:
This factor shows up in earlier snapshots of the list of factors. So this was simply a failure of the duplication suppression check, not a new discovery.

PS,
10280807 is 24 bits, so how could it show up in TF 10–20 ?

Last fiddled with by GP2 on 2018-05-15 at 20:12
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