20201207, 06:57  #1739 
Sep 2002
3×263 Posts 
P1 found a factor in stage #1, B1=746000.
UID: Jwb52z/Clay, M101488399 has a factor: 318084054463279132879217 (P1, B1=746000), 78.074 bits. 
20201207, 13:37  #1740  
Banned
"Luigi"
Aug 2002
Team Italia
4,813 Posts 
Quote:
(and no, M1908504326779674797275303 has 0 factors in [2^1, 2^1201]) Last fiddled with by ET_ on 20201207 at 14:40 

20201207, 14:44  #1741  
Banned
"Luigi"
Aug 2002
Team Italia
4813_{10} Posts 
Quote:
M466661313194347275441247200833 has 0 factors in [2^1, 2^1321] Last fiddled with by ET_ on 20201207 at 14:46 

20201207, 18:27  #1742 
"KarlHeinz Hofmann"
Jan 2017
Gr.Rohrheim Germany
33_{8} Posts 
M197 has a factor: 26828803997912886929710867041891989490486893845712448833 (already known)
But M26828803997912886929710867041891989490486893845712448833 has a factor: 126363666830169697438938183767311270500193270013305634003431 (196.3313 bit) 
20201208, 05:03  #1744 
Romulan Interpreter
Jun 2011
Thailand
2^{5}×5×59 Posts 
Grrrr... please stop posting trivial factors of ridiculously huge mersenne numbers. It was fun for the first few, and took us by surprise, but they don't have any value.
If you are serious, beat this. M(2618163402417 · 2^{1290000}1) has a factor 2618163402417 · 2^{1290001}1 (1290043 bits) (the largest "trivial" known, since 2016) Last fiddled with by LaurV on 20201208 at 05:08 
20201208, 13:53  #1745 
"Mike"
Aug 2002
1111111010000_{2} Posts 
Our largest P1 factor ever: 34925362324925878138544818314286841

20201209, 00:30  #1747 
Sep 2002
3·263 Posts 
P1 found a factor in stage #1, B1=729000.
UID: Jwb52z/Clay, M101165227 has a factor: 191612436557663486778337 (P1, B1=729000) 77.343 bits. 
20201217, 01:19  #1749 
Dec 2016
107_{8} Posts 
UID: nordi/sweet16, M1489 has a factor: 430768120877571983358263339450368443038134995818878229278591 (ECM curve 4082, B1=1000000000, B2=19071176724616)
60 digit factor, and what's left is a probable prime! Santa came rather early this year ;) Last fiddled with by nordi on 20201217 at 01:21 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
A new factor of F11?!  siegert81  FermatSearch  2  20180124 04:35 
A fond farewell  rogue  Lounge  10  20081121 05:25 
who can factor 10^100+27?  aaa120  Factoring  17  20081113 19:23 
New factor  fivemack  ElevenSmooth  4  20080507 19:28 
Shortest time to complete a 2^67 trial factor (no factor)  dsouza123  Software  12  20030821 18:38 