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Old 2020-09-17, 14:22   #1651
James Heinrich
 
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"James Heinrich"
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My Results to BBcode tool now checks for and handles composite factors:

Quote:
M16929421 has a 167.263-bit (51-digit) composite (P22+P29) factor: 224407487493587669391081856081164702441247338964631 (P-1,B1=289000,B2=8238000,E=12)
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Old 2020-09-17, 17:59   #1652
Viliam Furik
 
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That would have been second-biggest P-1 factor if prime...

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Old 2020-09-18, 02:02   #1653
Runtime Error
 
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Woah I think I finally found one worth of this thread!!!

Code:
102038449 is divisible by 9888494385519120122543174973655965293191066143473
49 digits and 162.758 bits!!!

Unfortunately, it is composite, the smaller of which is less than 80 bits:
Code:
797556068573591374225729
12398494319282704934063537
But I'm happy about it! The hunt continues...

Edit: I'm gonna run PRP-CF on it for fun, fingers crossed!

Last fiddled with by Runtime Error on 2020-09-18 at 02:10
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Old 2020-09-18, 10:25   #1654
James Heinrich
 
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Quote:
Originally Posted by Runtime Error View Post
102038449 is divisible by 9888494385519120122543174973655965293191066143473
Just curious, is that actual output from some factoring program, or did you format it that way? You appear to have run the P-1 with Prime95 which I thought would have output the usual M102038449 has a factor: 9888... style?
Just wondering if I need to update my results bbencoder for that format if it's standard output from some program.
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Old 2020-09-18, 14:58   #1655
Runtime Error
 
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Quote:
Originally Posted by James Heinrich View Post
Just curious, is that actual output from some factoring program, or did you format it that way? You appear to have run the P-1 with Prime95 which I thought would have output the usual M102038449 has a factor: 9888... style?
Just wondering if I need to update my results bbencoder for that format if it's standard output from some program.
I formatted it to make it more elegant for human eyes. The output that I received is below. No need to update!!

Quote:
{"status":"F", "exponent":102038449, "worktype":"P-1", "factors":["9888494385519120122543174973655965293191066143473"], "b1":1000000, "b2":36000000, "brent-suyama":12, "fft-length":5898240, "security-code":"XYZXYZXYZ", "program":{"name":"Prime95", "version":"30.3", "build":6, "port":8}, "timestamp":"2020-09-17 12:17:30", "user":"XYZXYZXYZ"}
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Old 2020-09-18, 15:27   #1656
James Heinrich
 
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Quote:
Originally Posted by Runtime Error View Post
I formatted it to make it more elegant for human eyes. The output that I received is below. No need to update!!
Oh, ok. That's what my results->bbencoder is for, just copy-paste in the JSON result line and you get this:
Quote:
M102038449 has a 162.758-bit (49-digit) composite (P24+P26) factor: 9888494385519120122543174973655965293191066143473 (P-1,B1=1000000,B2=36000000,E=12)
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Old 2020-09-18, 18:22   #1657
Runtime Error
 
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Quote:
Originally Posted by James Heinrich View Post
Oh, ok. That's what my results->bbencoder is for, just copy-paste in the JSON result line and you get this:
Ohhhh, wow TIL, thanks. I'll use bbencoder next time I find a good sized factor, which will hopefully be soon!
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Old 2020-09-22, 02:31   #1658
Jwb52z
 
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P-1 found a factor in stage #2, B1=722000, B2=19514000.
UID: Jwb52z/Clay, M100242643 has a factor: 2508386228544075871170604217209 (P-1, B1=722000, B2=19514000)

100.985 bits.

This is a big one for me.
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Old 2020-09-22, 08:51   #1659
kruoli
 
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It barely misses your personal Top 10: http://www.mersenne.ca/pm1user/789
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