My [url=https://www.mersenne.ca/json2bbcode.php]Results to BBcode[/url] tool now checks for and handles composite factors:

[quote][M]M16929421[/M] has a 167.263-bit (51-digit) [b]composite[/b] (P22+P29) factor: [url=https://www.mersenne.ca/M16929421]224407487493587669391081856081164702441247338964631[/url] (P-1,B1=289000,B2=8238000,E=12)[/quote]

That would have been second-biggest P-1 factor if prime...

:cry:

Woah I think I finally found one worth of this thread!!!

[CODE][M]102038449[/M] is divisible by 9888494385519120122543174973655965293191066143473
[/CODE]

49 digits and 162.758 bits!!!

Unfortunately, it is composite, the smaller of which is less than 80 bits:
[CODE]797556068573591374225729
12398494319282704934063537[/CODE]

But I'm happy about it! The hunt continues...

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

[QUOTE=Runtime Error;557264][M]102038449[/M] is divisible by 9888494385519120122543174973655965293191066143473[/QUOTE]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 [c]M102038449 has a factor: 9888...[/c] style?
Just wondering if I need to update my [url=https://www.mersenne.ca/json2bbcode.php]results bbencoder[/url] for that format if it's standard output from some program.

[QUOTE=James Heinrich;557279]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 [c]M102038449 has a factor: 9888...[/c] style?
Just wondering if I need to update my [url=https://www.mersenne.ca/json2bbcode.php]results bbencoder[/url] for that format if it's standard output from some program.[/QUOTE]

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"}[/QUOTE]

[QUOTE=Runtime Error;557290]I formatted it to make it more elegant for human eyes. The output that I received is below. No need to update!![/QUOTE]Oh, ok. That's what my results->bbencoder is for, just copy-paste in the JSON result line and you get this: :smile:[quote][M]M102038449[/M] has a 162.758-bit (49-digit) [b]composite[/b] (P24+P26) factor: [url=https://www.mersenne.ca/M102038449]9888494385519120122543174973655965293191066143473[/url] (P-1,B1=1000000,B2=36000000,E=12)[/quote]

[QUOTE=James Heinrich;557291]Oh, ok. That's what my results->bbencoder is for, just copy-paste in the JSON result line and you get this: :smile:[/QUOTE]

Ohhhh, wow TIL, thanks. I'll use bbencoder next time I find a good sized factor, which will hopefully be soon!

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.

It barely misses your personal Top 10: [URL="http://www.mersenne.ca/pm1user/789"]http://www.mersenne.ca/pm1user/789[/URL]

Even a blind (anonymous) squirrel finds a nut (factor) once in a while.
[M]54277[/M] has a factor of 2679778495314900465084978098198220983
37 digits 121 bits

[QUOTE=Uncwilly;557844][M]M54277[/M] has a 121.012-bit (37-digit) factor: [url=https://www.mersenne.ca/M54277]2679778495314900465084978098198220983[/url] (ECM,B1=3000000,B2=300000000)[/QUOTE]Yeah, I saw that yesterday and meant to comment, if only for the considerable number of P-1 efforts thrown at it.