M3321934307 no factor from 71.000 bits to 73.000 bits.

Rodrigo

no factor for M3321931099 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931163 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931433 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931513 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931531 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931619 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931829 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931919 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931931 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321931993 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321932093 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934909 from 2^76 to 2^77 [mfaktc 0.14-Win barrett79_mul32]

[troll]
M4294967279 has a factor: 862773027005521
found 1 factor(s) for M4294967279 from 2^ 1 to 2^73 [mfaktc 0.14-Win 75bit_mul32]
[/troll]
triying at the limit of mfaktc ( i know, useless... but at least I have a factor)

[QUOTE=firejuggler;251734]triying at the limit of mfaktc ( i know, useless... but at least I have a factor)[/QUOTE]
Factor5 can go[COLOR="DarkRed"][B][SIZE="3"] much [/SIZE][/B][/COLOR]higher.

yup i know. but it is so slow... ;p

Bet I can take 2^2305843009213693951-1 to 100 bits on a CPU faster than you can take 2^4294967279-1 to 80 bits on a GPU.

[QUOTE=lavalamp;251769]Bet I can take 2^2305843009213693951-1 to 100 bits on a CPU faster than you can take 2^4294967279-1 to 80 bits on a GPU.[/QUOTE]

About 6 hours on my laptop core2 duo and less than 2.5 hours on my i5-750 quad core at home...
:smile::smile::smile:

Luigi

[QUOTE=firejuggler;251734][troll]
M4294967279 has a factor: 862773027005521
found 1 factor(s) for M4294967279 from 2^ 1 to 2^73 [mfaktc 0.14-Win 75bit_mul32]
[/troll]
triying at the limit of mfaktc ( i know, useless... but at least I have a factor)[/QUOTE]

Did you send the factor to George Woltman and Will Edgington?

Luigi

nope, as I don't know their mail.

[QUOTE=firejuggler;251793]nope, as I don't know their mail.[/QUOTE]

PM me your name, and I'll forward the info for you :smile:

Luigi

[QUOTE=ET_]less than 2.5 hours on my i5-750 quad core at home.[/QUOTE]That seems a bit long, shouldn't it be closer to 45 - 60 mins on that system? Or does it significantly slow down when the exponent/bit level goes up?

Based on some old times (for smaller exponents and lower bit levels) on my OC'd i7, I'd estimate about 30 mins.