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2020-12-31, 12:51   #1761
ET_
Banned

"Luigi"
Aug 2002
Team Italia

481310 Posts

Quote:
 Originally Posted by James Heinrich All within 1 bit of each other?? That's... unusual.
...fascinating... (C)

 2021-01-08, 03:26 #1762 firejuggler     Apr 2010 Over the rainbow A0416 Posts M27152453 has a 77.503-bit (24-digit) factor: 214211625581311913643047 (P-1,B1=1350000,B2=89100000) Long live large B2! k= 7 × 83 × 173 × 577 × 68 015 191
2021-01-13, 05:02   #1763
Runtime Error

Sep 2017
USA

3538 Posts

Indeed!!!

Quote:
 Originally Posted by firejuggler Long live large B2!
M102202943 has a 110.005-bit (34-digit) factor: 1302388182362272479207770608381153 (P-1,B1=1500000,B2=45000000,E=12)

min B2 = 24 878 501

M102057829 has a 100.217-bit (31-digit) factor: 1473595630881614096459261244097 (P-1,B1=1500000,B2=91500000)

min B2 = 63 240 223

2021-01-15, 05:32   #1764
nomead

"Sam Laur"
Dec 2018
Turku, Finland

2×3×5×11 Posts

Quote:
 Originally Posted by nomead https://www.mersenne.ca/exponent/4217750177 It already had one factor, now it has four more.
67.472 - 66.121 = 1.351

By that measure, then, these four are bunched up even closer:
https://www.mersenne.ca/exponent/4241699879

67.221 - 65.933 = 1.288

 2021-01-16, 03:43 #1765 Jwb52z     Sep 2002 3×263 Posts P-1 found a factor in stage #2, B1=736000, B2=19894000. UID: Jwb52z/Clay, M102192683 has a factor: 1528515278715554871122431 (P-1, B1=736000, B2=19894000) 80.338 bits.
 2021-01-20, 01:07 #1766 Jwb52z     Sep 2002 31516 Posts P-1 found a factor in stage #1, B1=737000. UID: Jwb52z/Clay, M102256103 has a factor: 417298926313351006345081 (P-1, B1=737000), 78.465 bits.
 2021-01-21, 00:08 #1767 Stargate38     "Daniel Jackson" May 2011 14285714285714285714 65010 Posts TF Result: UID: stargate38/GTX1650, M4197560041 has a factor: 7284080534216661181663 [TF:31:73:mfaktc 0.21 75bit_mul32_gs] 72.625 bits; k=3*4337*4561*14621
2021-01-21, 00:43   #1768
storm5510
Random Account

Aug 2009

36258 Posts

I pulled these from my results on Primenet:

Quote:
 M103813579, Factor: 19610018312363450480303 / TF: 74-75 M103811881, Factor: 37646989331843629835057 / TF: 74-75
I had been running GPUto72 for a couple of weeks. 23 digits each. I did not bother with bits.

2021-01-21, 00:50   #1769
retina
Undefined

"The unspeakable one"
Jun 2006
My evil lair

22×5×307 Posts

Quote:
Originally Posted by storm5510
Quote:
 TF: 74-75
23 digits each. I did not bother with bits.
Let me guess. Umm, 74.xxx bits perhaps?

 2021-01-21, 04:31 #1770 Runtime Error   Sep 2017 USA 5×47 Posts Props to Kriesel for knocking me out of the Top 500 with this enormous factor!!! M101837677 has a 128.604-bit (39-digit) factor: 517050261390286174198141026167350661719 (P-1,B1=1000000,B2=30000000)
2021-01-21, 19:16   #1771
storm5510
Random Account

Aug 2009

3·647 Posts

Quote:
 Originally Posted by retina Let me guess. Umm, 74.xxx bits perhaps?
If you want to look at it this way, yes. GPUto72 is currently running to 76 bits, a prep for the next step. Before, this would be P-1, but now, I am not sure.

Quote:
 Originally Posted by Runtime Error Props to Kriesel for knocking me out of the Top 500 with this enormous factor!!!
I too have found a 39-digit factor. This was on 5/05/2019. Mine was ECM. M83621. It is here. I never checked on any list to see if it was there. Doing so never seemed important at the time.

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