20221228, 00:51  #2234 
Sep 2022
2^{2}×17 Posts 
Had a lucky ECM streak on unfactored exponents recently, usually find 1 factor every couple weeks but have got 2 factors within a few hours of each other:
M214783 has a factor: 1102834494064669506004266650004828269423 / (ECM curve 17, B1=3000000, B2=6616119510, Sigma=137844928612264) (129.696 bits, 40 digits, new personal record largest factor) M210491 has a factor: 1680490771184651242949512447428919 / (ECM curve 11, B1=3000000, B2=6616119510, Sigma=575255113699867) (110.373 bits, 34 digits) 
20221228, 03:01  #2235 
Sep 2022
44_{16} Posts 
Edit: Make that 3, this just happened aparrently:
M208073 has a factor: 3731074311071089639450741837271 (ECM curve 35, B1=3000000, B2=6616119510) 
20221230, 01:08  #2236 
Sep 2017
USA
2×5×19 Posts 
Found a 110bit factor on a wave front exponent!
min B1 = 1,000,037 min B2 = 545,850,313 M114785129 has a 110.863bit (34digit) factor: 2361477100582561776755612373583993 (P1,B1=1400000,B2=1001933790) 
20221230, 06:40  #2237 
Sep 2002
846_{10} Posts 
P1 found a factor in stage #2, B1=537000, B2=19025622.
UID: Jwb52z/Clay, M119602183 has a factor: 39769121872136784387765097 (P1, B1=537000, B2=19025622) 85.040 bits. 
20230107, 14:32  #2239 
"Viliam Furík"
Jul 2018
Martin, Slovakia
13·61 Posts 
Another one joins the club (bites the dust)
M736647071 has a factor: 19251950982339179681312159 (TF 8384)
A new member of a relatively small group of Mersenne's with 10 (or more) known factors. 
20230112, 01:54  #2240 
Sep 2002
2×3^{2}×47 Posts 
UID: Jwb52z/Clay, M119686603 has a factor: 194945427614502977436457 (P1, B1=537000)
77.367 bits. 
20230115, 21:21  #2242 
Sep 2010
Annapolis, MD, USA
BF_{16} Posts 
M2614303 has factor 94286373215560002099130008156415246687079887097 (156.04 bits)
k = 2^2 * 23 * 89 * 103 * 4423 * 17053 * 267517 * 3876497 * 5110717 * 53488147 think this is my biggest factor; I've found other large factors with P1 but they were composite 
20230116, 00:19  #2244  
"Daniel Jackson"
May 2011
14285714285714285714
3×251 Posts 
Quote:


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