20230827, 14:32  #2344 
"James Heinrich"
May 2004
exNorthern Ontario
4,337 Posts 
How much RAM does your P1 system have? Your bounds seem... low?
mersenne.ca predicts approx B1=800k, B2=225M and you're getting B1=532k, B2=18M Last fiddled with by James Heinrich on 20230827 at 14:32 
20230908, 00:48  #2345 
Sep 2002
1547_{8} Posts 
P1 found a factor in stage #2, B1=538000, B2=19051074.
UID: Jwb52z/Clay, M119159609 has a factor: 27387417648225305987147863 (P1, B1=538000, B2=19051074) 84.502 bits. 
20230908, 00:50  #2346 
Sep 2002
13·67 Posts 
Well, it's been so long since I set my account up that I don't really honestly remember what it's set to or where to find that setting anymore in GIMPS. My laptop only has 16 MB of RAM total.
Last fiddled with by Jwb52z on 20230908 at 00:52 
20230911, 21:45  #2347 
Jul 2009
Germany
2·3·11^{2} Posts 
Found the following 13 factors in 1 month in the lower range of the 100 Million Digit Prime Award with mfaktc0.21 with 3 google accounts and 3 hours runtime per Tesla T4 instance. Much work has do be done and only a few people currently working in this range.
Code:
334450561 F 20230807 Factor: 50854372402230817631209 / TF: 7576 334460297 F 20230807 Factor: 67509100414954238331463 / TF: 7576 334456211 F 20230807 Factor: 67973654565127585122127 / TF: 7576 334460473 F 20230808 Factor: 48204850879851045727519 / TF: 7576 334458581 F 20230811 Factor: 41207635439122241833703 / TF: 7576 334467113 F 20230814 Factor: 42986108424996234098177 / TF: 7576 334556111 F 20230817 Factor: 69490557327403764103457 / TF: 7576 334557647 F 20230821 Factor: 52286411798961515773831 / TF: 7576 334552633 F 20230821 Factor: 72377169472507464273193 / TF: 7576 334558183 F 20230822 Factor: 57147625128021294766369 / TF: 7576 334558769 F 20230823 Factor: 53096589804648253847273 / TF: 7576 334652797 F 20230903 Factor: 40620012368854589549353 / TF: 7576 334808767 F 20230911 Factor: 40585596615334757533663 / TF: 7576 Last fiddled with by moebius on 20230911 at 21:50 
20230911, 22:31  #2348 
Random Account
Aug 2009
Oceanus Procellarum
13×233 Posts 
From James Heinrich's project.
P1 found a factor in stage #2, B1=925000, B2=391301820. M14143777 has a factor: 65619147676452806540729. 75.797 bits. P1 found a factor in stage #2, B1=925000, B2=391301820. M14143853 has a factor: 599234483141585673873226543. 88.953 bits. I made a point to start checking these with YAFU after my last mistake with what appeared to be a really large factor. It was composite. 
20230911, 23:28  #2349 
"James Heinrich"
May 2004
exNorthern Ontario
4,337 Posts 
As soon as factors are submitted to mersenne.org (or mersenne.ca if >1G) they're automatically checked for primality and split if necessary.
Same if you format your result for posting here in the BBcode tool. The mersenne.ca factorization tool will only split relatively small factors, but will quickly tell you if larger ones are prime. Last fiddled with by James Heinrich on 20230911 at 23:50 
20230911, 23:40  #2350  
Random Account
Aug 2009
Oceanus Procellarum
13×233 Posts 
Quote:


20230912, 05:40  #2351 
Random Account
Aug 2009
Oceanus Procellarum
13·233 Posts 
@James Heinrich
M14140717 has a 78.397bit (24digit) factor: 397902685379989857294169 (P1,B1=960000,B2=517285860) k = 2^{2} * 3^{3} * 113 * 2389 * 482566417 I didn't think it would work with what I gave it, but it did. I won't do this with all the factors I find in your "poorly factored" list. Just some. 
20230912, 18:15  #2352 
"Alexander"
Nov 2008
The Alamo City
2·3^{3}·19 Posts 
Certainly you mean 16 GB? I have a late90sera IBM Aptiva with 32 MB of RAM. Certainly your laptop has more RAM than that ancient box.

20230912, 23:51  #2353 
Random Account
Aug 2009
Oceanus Procellarum
13·233 Posts 
M14143529 has a 108.585bit (33digit) factor: 486710840366160325600510947689663 (P1,B1=984000,B2=659334390)
k = 97 * 839 * 1303 * 16349 * 908627 * 10922657 Yesterday, I decided that I would not post anything < 30 digits, yet here is one. I suppose it might have something to do with B2. 
20230913, 06:13  #2354 
Random Account
Aug 2009
Oceanus Procellarum
3029_{10} Posts 
M14146823 has a 96.448bit (30digit) factor: 108063900922338799672720320959 (P1,B1=984000,B2=659334390)
k = 67343 * 133949 * 315697 * 1341187 
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