[QUOTE=aketilander;312440]...only one after 2005, so we may have to wait for a while for the next one.[/QUOTE]The firepower that has been brought to bear with the GPU's is very significant. So, I hope the results (and factors) should flow in rapidly.

[QUOTE=Batalov;312340]I am desperately searching for the word "has" in this thread... :bangheadonwall:[/QUOTE]
I meant that in a good way. I pull some weight too. I was just venting. :-)
I'm feeling [URL="http://www.imdb.com/title/tt0167404/quotes"]much better now[/URL].

has
(to make Batalov happy :razz:)

Ended my both MM89 and Fxx N=90 ranges. The factor still managed to stay hidden, but my feeling is that he is now cornered and sooner or later someone will put the paw on it..

[CODE][Tue Sep 18 21:09:07 2012]
no factor for MM89 in k range: 600T to 700T (140-bit factors) [mmff 0.23 mfaktc_barrett140_M89gs]
[Wed Sep 19 03:57:38 2012]
no factor for k*2^90+1 in k range: 100000000000000 to 140737488355328 (137-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Wed Sep 19 12:54:51 2012]
no factor for k*2^90+1 in k range: 140737488355328 to 200000000000000 (138-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Wed Sep 19 15:49:47 2012]
no factor for MM89 in k range: 700T to 800T (140-bit factors) [mmff 0.23 mfaktc_barrett140_M89gs]
[Thu Sep 20 02:39:16 2012]
no factor for k*2^90+1 in k range: 200000000000000 to 281474976710656 (138-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Thu Sep 20 05:26:29 2012]
no factor for k*2^90+1 in k range: 281474976710656 to 300000000000000 (139-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Thu Sep 20 10:29:47 2012]
no factor for MM89 in k range: 800T to 900T (140-bit factors) [mmff 0.23 mfaktc_barrett140_M89gs]
[Thu Sep 20 20:24:41 2012]
no factor for k*2^90+1 in k range: 300T to 400T (139-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Fri Sep 21 05:10:35 2012]
no factor for MM89 in k range: 900T to 1000T (140-bit factors) [mmff 0.23 mfaktc_barrett140_M89gs]
[Fri Sep 21 11:32:19 2012]
no factor for k*2^90+1 in k range: 400T to 500T (139-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Fri Sep 21 21:07:05 2012]
no factor for k*2^90+1 in k range: 500000000000000 to 562949953421312 (139-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Fri Sep 21 22:32:44 2012]
no factor for k*2^90+1 in k range: 700T to 800T (140-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Sat Sep 22 02:44:06 2012]
no factor for k*2^90+1 in k range: 562949953421312 to 600000000000000 (140-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Sat Sep 22 17:55:19 2012]
no factor for k*2^90+1 in k range: 600T to 700T (140-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Sat Sep 22 13:20:46 2012]
no factor for k*2^90+1 in k range: 800T to 900T (140-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[Sun Sep 23 04:10:43 2012]
no factor for k*2^90+1 in k range: 900T to 1000T (140-bit factors) [mmff 0.23 mfaktc_barrett140_F64_95gs]
[/CODE]

no factor for k*2^51+1 in k range: 350000000000000 to 562949953421312 (100-bit factors) [mmff 0.23 mfaktc_barrett108_F32_63gs]
no factor for k*2^51+1 in k range: 562949953421312 to 1000000000000000 (101-bit factors) [mmff 0.23 mfaktc_barrett108_F32_63gs]

Luigi, it seems you missed that one :wink:
[QUOTE=Jatheski;312421][CODE]
no factor for k*2^42+1 in k range: 600T to 1000T (92-bit factors) [mmff 0.23 mfaktc_barrett96_F32_63gs][/CODE][/QUOTE]

new result:
[CODE]no factor for k*2^43+1 in k range: 600T to 1000T (93-bit factors) [mmff 0.23 mfaktc_barrett96_F32_63gs][/CODE]

no factor for F40 from 2^88 to 2^89 (k range: 140000000000000 to 200000000000000) [mmff 0.20mmff mfaktc_barrett89_F30_61gs]
no factor for F40 from 2^89 to 2^90 (k range: 0 to 200000000000000) [mmff 0.20mmff mfaktc_barrett96_F30_61gs]
no factor for F30 from 2^81 to 2^82 (k range: 650000000000000 to 2500000000000000) [mmff 0.20mmff mfaktc_barrett89_F30_61gs]
no factor for F30 from 2^82 to 2^83 (k range: 0 to 2500000000000000) [mmff 0.20mmff mfaktc_barrett89_F30_61gs]
no factor for F30 from 2^83 to 2^84 (k range: 0 to 2500000000000000) [mmff 0.20mmff mfaktc_barrett89_F30_61gs]

Not sure if I missed yall catching this, but
no factor for k*2^43+1
should be no factor for k*2^2^43+1, right?

no factor for k*2^43+1 means there is no factor of the form k*2^43+1 dividing a Fermat number (F(45), F(46), ...)

But you have to use a version higher than 0.20 [URL]http://www.mersenneforum.org/showpost.php?p=310915&postcount=95[/URL]

[CODE]no factor for MM107 in k range: 400T to 500T (157-bit factors) [mmff 0.23 mfaktc_barrett160_M107gs]
no factor for MM107 in k range: 500000000000000 to 562949953421312 (157-bit factors) [mmff 0.23 mfaktc_barrett160_M107gs]
no factor for MM107 in k range: 562949953421312 to 600000000000000 (158-bit factors) [mmff 0.23 mfaktc_barrett160_M107gs]
no factor for MM107 in k range: 600T to 700T (158-bit factors) [mmff 0.23 mfaktc_barrett160_M107gs][/CODE]

[CODE]no factor for k*2^130+1 in k range: 12000000000000 to 17592186044416 (174-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^130+1 in k range: 17592186044416 to 35184372088832 (175-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^130+1 in k range: 35184372088832 to 50000000000000 (176-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^131+1 in k range: 12000000000000 to 17592186044416 (175-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^131+1 in k range: 17592186044416 to 35184372088832 (176-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^131+1 in k range: 35184372088832 to 50000000000000 (177-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^132+1 in k range: 12000000000000 to 17592186044416 (176-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^132+1 in k range: 17592186044416 to 35184372088832 (177-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^132+1 in k range: 35184372088832 to 50000000000000 (178-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^133+1 in k range: 12000000000000 to 17592186044416 (177-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^133+1 in k range: 17592186044416 to 35184372088832 (178-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^133+1 in k range: 35184372088832 to 50000000000000 (179-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^134+1 in k range: 12000000000000 to 17592186044416 (178-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^134+1 in k range: 17592186044416 to 35184372088832 (179-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^134+1 in k range: 35184372088832 to 50000000000000 (180-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^135+1 in k range: 12000000000000 to 17592186044416 (179-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^135+1 in k range: 17592186044416 to 35184372088832 (180-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^135+1 in k range: 35184372088832 to 50000000000000 (181-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^136+1 in k range: 12000000000000 to 17592186044416 (180-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^136+1 in k range: 17592186044416 to 35184372088832 (181-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^136+1 in k range: 35184372088832 to 50000000000000 (182-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^137+1 in k range: 12000000000000 to 17592186044416 (181-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^137+1 in k range: 17592186044416 to 35184372088832 (182-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^137+1 in k range: 35184372088832 to 50000000000000 (183-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^138+1 in k range: 12000000000000 to 17592186044416 (182-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^138+1 in k range: 17592186044416 to 35184372088832 (183-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^138+1 in k range: 35184372088832 to 50000000000000 (184-bit factors) [mmff 0.23 mfaktc_barrett185_F128_159gs]
no factor for k*2^139+1 in k range: 12000000000000 to 17592186044416 (183-bit factors) [mmff 0.23 mfaktc_barrett183_F128_159gs]
no factor for k*2^139+1 in k range: 17592186044416 to 35184372088832 (184-bit factors) [mmff 0.23 mfaktc_barrett185_F128_159gs]
no factor for k*2^139+1 in k range: 35184372088832 to 50000000000000 (185-bit factors) [mmff 0.23 mfaktc_barrett185_F128_159gs]
[/CODE]

Sadly, my 1+% shot at cracking MM127 fell short.

[CODE]no factor for MM127 from 2^177 to 2^178 [mfaktc 0.20mmff mfaktc_barrett183_M127gs][/CODE]