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#56 | |
Banned
"Luigi"
Aug 2002
Team Italia
29·167 Posts |
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I'm afraid I followed the wrong chain of answers. The old behavior was removed. The actual Prime95 should finish its bit range even if a factor is found. Luigi |
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#57 |
Sep 2010
Scandinavia
3·5·41 Posts |
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Which raises my question, again.
Why multiply them? Isn't that sort of the opposite of what we're trying to do here? |
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#58 | |
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
3×37×47 Posts |
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http://mersenne-aries.sili.net/credi...tton=Calculate Finding the same factor via TF would take over 8.5 quadrillion GhzDays ![]() |
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#59 | |
"Richard B. Woods"
Aug 2002
Wisconsin USA
769210 Posts |
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Exactly which ones are you referring to, and which procedure found them? Perhaps there's some mixup.
TF doesn't multiply them. (I've seen TF report two found factors from a single run; it did so on separate "has a factor" lines, not presented as the product of the two.) P-1, by its nature, may find the product of two smaller factors at the conclusion of its GCD, rather than finding the two separately. Isn't that the method involved in the case you reference? Quote:
![]() Last fiddled with by cheesehead on 2011-01-13 at 22:45 |
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#60 | |||
Sep 2010
Scandinavia
3·5·41 Posts |
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Quote:
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#61 |
Jan 2011
Cincinnati, OH
22·52 Posts |
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This is my largest factor so far-
52526609 has a factor: 156325851414571040867100443817329068296081239222450719 Found by P-1 |
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#62 |
Sep 2010
Scandinavia
10011001112 Posts |
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That's a composite; p24*p30. Still, nice find!
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#63 | |
Jun 2003
7·167 Posts |
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I'm not aware of any comparable theorem for other k. |
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#64 |
Jun 2003
7×167 Posts |
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#65 |
Jun 2003
49116 Posts |
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M39375727 has a factor: 13698938687421045884119517033
M42516611 has a factor: 124316222847533124840651137 The second half of last year was really poor for me. I got no factors at all between 8 August and 26 November. Then three in December, and these two-in-a-row this month. M39787039 has a factor: 1700513525404800279754718890351 A nice p31 found back in February last year. Last fiddled with by Mr. P-1 on 2011-01-15 at 10:48 |
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#66 |
Jan 2011
Cincinnati, OH
22×52 Posts |
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I also agree that we should view composite factors as two smaller ones. Here is my 2nd largest one, also found by P-1:
M51443083 has a factor: 25320591696138535897675469195834877349466521 I'm also assuming that this is composite since it is so large. I'm still very new at this, and learning. Can you tell me what you are doing, or using to tell if these numbers are composite or not? Also, maybe I'm getting more than my share, but I've been doing P-1 work for 18 months now, and I've found 24 factors in 331 tests, at about a 7.25% rate. Thanks, Doug |
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