[QUOTE=ET_;238707]The discovery of the factor 378121774679999658041.

Rodrigo said there was no factor.
Gjmccrac noticed the new factor rerunning Factor5.
Rodrigo looked back on his results file and found the factor he didn't notice before.

The factor was "found" by Rodrigo, but "discovered" by gjmccrac.

Who is the real owner of the factor? :smile:

Luigi[/QUOTE]

I think the first person to post should get the credit.

[QUOTE=wblipp;238802]I think the first person to post should get the credit.[/QUOTE]
I'm willing to take the hit: even though my computer did find it, it was through my mistake that it didn't get reported, and it would have been left at that if gjmccrac hadn't happened to run the same number.

His generosity is much appreciated, though! :smile:

Rodrigo

Factoring M3321930401 from 2^77 to 2^78 99.999% completed.
No factor found
Performed 125642641964 powmod operations since last restart.
Used 970704 primes, max. prime = 14999981
Current date Sun Nov 28 18:31:54 2010

M3321934207 no factor from 71.000 bits to 73.000 bits

Happy New Year to those who celebrate it...!

Rodrigo

[CODE]no factor for M3321934379 from 2^69 to 2^70 [mfaktc 0.13-Win barrett79_mul32]
no factor for M3321934379 from 2^70 to 2^72 [mfaktc 0.13-Win 75bit_mul32]
no factor for M3321934379 from 2^72 to 2^73 [mfaktc 0.13-Win barrett79_mul32]
no factor for M3321934379 from 2^73 to 2^74 [mfaktc 0.13-Win barrett79_mul32]
no factor for M3321934379 from 2^74 to 2^75 [mfaktc 0.13-Win barrett79_mul32]
no factor for M3321934379 from 2^75 to 2^76 [mfaktc 0.13-Win barrett79_mul32]
no factor for M3321934379 from 2^76 to 2^77 [mfaktc 0.13-Win barrett79_mul32]
no factor for M3321934379 from 2^77 to 2^78 [mfaktc 0.13-Win barrett79_mul32]
no factor for M3321934379 from 2^78 to 2^79 [mfaktc 0.13-Win barrett79_mul32]
no factor for M3321934379 from 2^79 to 2^80 [mfaktc 0.13-Win barrett92_mul32][/CODE]

[CODE]M3321934783 has no factor in [2^71, 2^72-1][/CODE]

Grant

First exponent to 82
 

[CODE]no factor for M3321928171 from 2^81 to 2^82 [mfaktc 0.13-Win barrett92_mul32][/CODE]

M3321934951 from 78 to 79 : no factor found

M3321934003
 

I have factored M3321934003 from 71 to 72 bits, using Factor 5. Here is the result file:-

M3321934003 has 0 factors in [2^71, 2^72-1].

I won't be doing any more work on this exponent.

no factor for M3321934757 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
took 3 minutes and a half

no factor for M3321934051 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934129 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934163 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934193 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934199 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934241 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934243 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934537 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
M3321934579 has a factor: 3980838549161824437481
found 1 factor(s) for M3321934579 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934697 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]
no factor for M3321934757 from 2^71 to 2^72 [mfaktc 0.14-Win barrett79_mul32]