20220408, 22:39  #2113 
Random Account
Aug 2009
Not U. + S.A.
3·5^{2}·31 Posts 
Prime95 establishes its own P1 and ECM bounds and I don't change them. If there is a difference between v29 and v30, I am unaware of it. I have no intention of doing anything "badly." This would be unnecessary work for someone else. I don't what that!

20220408, 22:47  #2114 
"James Heinrich"
May 2004
exNorthern Ontario
3,833 Posts 
There is. A huge difference. Since you posted about this in the v30.8 thread I assume you have been reading about it and are aware of the differences. In short, v30.8 can work with significantly higher bounds for significantly higher chance of factor for the same amount of allocated RAM.

20220408, 23:05  #2115  
Random Account
Aug 2009
Not U. + S.A.
915_{16} Posts 
Quote:


20220411, 05:05  #2116 
"Seth"
Apr 2019
19×23 Posts 
Found two factors for a TWOK candidate. one factor in stage one, one factor in stage two.
Both were missed by a 2003 P1; both could be found with small B1, B2 so the large B2 from 30.8 was a little unnecessary. 19442623 has a 82bit (25digit) factor: 7705180804505006995733009 (P1,B1=800000) 19442623 has a 78bit (24digit) factor: 152612436387610563716369 (P1,B1=800000,B2=802202310) Last fiddled with by axn on 20220411 at 06:33 Reason: 70>78 
20220421, 12:56  #2117 
Oct 2018
Slovakia
161_{8} Posts 
Composite factor
112084657
P1 found a 238bit composite factor(B1=824000, B2=242053350). 408942596393398983090401  78.436bits 1600346782413225832691898697103973353256067499521  160.131bits 
20220421, 13:31  #2118  
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
3^{3}×397 Posts 
Quote:


20220421, 14:39  #2119  
Jul 2003
Behind BB
1927_{10} Posts 
Quote:


20220421, 17:57  #2120  
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
10011011010001_{2} Posts 
Quote:
Composite factors' sizes are arbitrarily large and don't count. 

20220421, 18:12  #2121 
"James Heinrich"
May 2004
exNorthern Ontario
111011111001_{2} Posts 
No, just the 160bit prime component of the composite factor is #5 on the biggest P1 Mersenne Factors list.

20220421, 18:53  #2122 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
19·523 Posts 
Ah, ok.
That message said "a top 5 all time P1 factor" (period). I know a thing or two about top all time P1 factors  they are way larger. 
20220504, 05:56  #2123 
Sep 2002
1101000000_{2} Posts 
P1 found a factor in stage #2, B1=490000, B2=13987000.
UID: Jwb52z/Clay, M114782309 has a factor: 274973054029559054066929 (P1, B1=490000, B2=13987000) 77.864 bits. 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Factor found that should have been found by P1  tha  Data  65  20200805 21:11 
F12 factor found?  johnadam74  FermatSearch  16  20161103 12:10 
TF Factor Found CPU Credit  TheMawn  GPU Computing  3  20130617 06:21 
found this factor  tha  Factoring  4  20070618 19:56 
After a factor is found it keeps on going  jocelynl  Software  6  20040807 01:31 