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Old 2009-03-27, 19:08   #1
wblipp
 
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Default Largest ECM, yoyo's 4th, 14th primitive

yoyo@home user Aflatoxin found a P51 from 23360+1 leaving a P393 which completes the factorization of this primitive; a P8 and a P13 were known before the founding of ElevenSmooth. This is the largest factor ElevenSmooth has found by ECM, and this is the fourteenth primitive for which ElevenSmooth has completed the factorization.

Last fiddled with by wblipp on 2009-03-27 at 19:09 Reason: spelling
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Old 2009-03-28, 10:52   #2
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Quote:
Originally Posted by wblipp View Post
yoyo@home user Aflatoxin found a P51 from 23360+1 leaving a P393 which completes the factorization of this primitive; a P8 and a P13 were known before the founding of ElevenSmooth. This is the largest factor ElevenSmooth has found by ECM, and this is the fourteenth primitive for which ElevenSmooth has completed the factorization.
Just in case it hadn't been done, I certified the P393 using Primo. (And just in case that was in error, I verified it too.)
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Old 2009-03-28, 12:05   #3
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Thank you. I verified with Dario Alpern's java applet, but I forgot to mention it.
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Old 2009-03-29, 17:04   #4
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In the "Full Detail of Large Primes section", the new prime is listed as being exactly the same as the previously found P51 (from M2520).
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Old 2009-03-29, 21:01   #5
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I must have been more tired than I realized when preparing those updates. It's fixed now. Thanks for spotting the error.

William
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