(Preying for) World Record P-1! - Page 10

Prime95 · 2022-01-23, 22:47

Thusfar, I've found 6 new factors in the 79K,80K,81K ranges using B1=1e12, B2=20e15.

I'm reserving ranges 76K,77K,78K.

Ethan (EO) · 2022-01-29, 01:13

I found 2 biggish factors -- 129 & 134 bits -- in my first batch of exponents in the 14k range:

M14321 Factor: 1227402003319228348725041527104377980649 / (P-1, B1=1000000000, B2=3088390743498060)
M14387 Factor: 27562343134739559423772046255780767094401 / (P-1, B1=1000000000, B2=3088390743498060)

I've been haphazardly poking around in the 1k and 4-5k regions as well and plan to finish up 14k.

SethTro · 2022-01-29, 10:00

Ethan I would suggest not working below 8K, those numbers have had substantial ECM by Ryan and I would be amazed if you found any factor below 200 bits.

Ethan (EO) · 2022-01-29, 17:25

Quote:

Originally Posted by SethTro

Ethan I would suggest not working below 8K, those numbers have had substantial ECM by Ryan and I would be amazed if you found any factor below 200 bits.

Thanks for the heads-up - I’ll stick to 8k+ after runs in progress wrap up 👍

Prime95 · 2022-03-19, 21:24

Quote:

Originally Posted by Prime95

I'm reserving ranges 76K,77K,78K.

I'm wrapping up this range, found at least 4 new factors.

Reserving 75K.

Prime95 · 2022-04-01, 01:48

Now taking 74000 - 74999

Prime95 · 2022-04-05, 00:51

and now 73000 - 74000

chalsall · 2022-04-05, 01:04

Quote:

Originally Posted by Prime95

and now 73000 - 74000

And a bit of Beethoven.

And a bit of silence.

To be sincere. I greatly enjoy silence.

petrw1 · 2022-04-06, 04:18

Work is starting on the next P-1 project taking advantage of v30.8 here
I'm hoping/expecting it will pick up in the next couple weeks as the under 2000 warps up.

At the highest level it's goals are very similar to this project: taking advantage of the power of v30.8 to find LOTS of P-1 factors.

That said, no one in either project wants to get in the way of the other (i.e. working in the same exponent ranges).
Neither project has a lot of effort/assignees but we still want to respect each other.

I will try to maintain an "assigned" list in Post #1 of the project noted above.
I've noticed post #98 mentions some "claims" in this project.

If this project wants to stake claim to every exponent under, say 100K?, I'm sure we can respect that.

I can tell from recent activity that there is more independent P-1 activity but I suggest that is the nature of the beast. We have no right to say what anyone can or cannot work on. That we will live with.

I welcome any thoughts.

Wayne

Prime95 · 2022-04-09, 17:02

For future reservations, please use this thread:

https://www.mersenneforum.org/showthread.php?t=27477

nordi · 2022-05-23, 17:05

M36919 has a 180.968-bit (55-digit) factor: 2997347544642661833497896836795494793702018162645139063 (P-1,B1=2000000000,B2=401927737170960)

That gets me to the top of the list of P-1 factors for Mersenne numbers! And all thanks to the new version 30.8 of mprime.

2022-04-06, 04:18	#108
petrw1 1976 Toyota Corona years forever! "Wayne" Nov 2006 Saskatchewan, Canada 5²×211 Posts	Avoiding toe stepping... Work is starting on the next P-1 project taking advantage of v30.8 here I'm hoping/expecting it will pick up in the next couple weeks as the under 2000 warps up. At the highest level it's goals are very similar to this project: taking advantage of the power of v30.8 to find LOTS of P-1 factors. That said, no one in either project wants to get in the way of the other (i.e. working in the same exponent ranges). Neither project has a lot of effort/assignees but we still want to respect each other. I will try to maintain an "assigned" list in Post #1 of the project noted above. I've noticed post #98 mentions some "claims" in this project. If this project wants to stake claim to every exponent under, say 100K?, I'm sure we can respect that. I can tell from recent activity that there is more independent P-1 activity but I suggest that is the nature of the beast. We have no right to say what anyone can or cannot work on. That we will live with. I welcome any thoughts. Wayne

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2022-01-23, 22:47	#100
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 2×3³×151 Posts	Thusfar, I've found 6 new factors in the 79K,80K,81K ranges using B1=1e12, B2=20e15. I'm reserving ranges 76K,77K,78K.

2022-01-29, 01:13	#101
Ethan (EO) "Ethan O'Connor" Oct 2002 GIMPS since Jan 1996 2·7² Posts	I found 2 biggish factors -- 129 & 134 bits -- in my first batch of exponents in the 14k range: M14321 Factor: 1227402003319228348725041527104377980649 / (P-1, B1=1000000000, B2=3088390743498060) M14387 Factor: 27562343134739559423772046255780767094401 / (P-1, B1=1000000000, B2=3088390743498060) I've been haphazardly poking around in the 1k and 4-5k regions as well and plan to finish up 14k.

2022-01-29, 10:00	#102
SethTro "Seth" Apr 2019 3²·53 Posts	Ethan I would suggest not working below 8K, those numbers have had substantial ECM by Ryan and I would be amazed if you found any factor below 200 bits.

2022-04-01, 01:48	#105
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 2·3³·151 Posts	Now taking 74000 - 74999

2022-04-05, 00:51	#106
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 2·3³·151 Posts	and now 73000 - 74000

2022-04-09, 17:02	#109
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 17732₈ Posts	For future reservations, please use this thread: https://www.mersenneforum.org/showthread.php?t=27477

2022-05-23, 17:05	#110
nordi Dec 2016 2·3²·7 Posts	M36919 has a 180.968-bit (55-digit) factor: 2997347544642661833497896836795494793702018162645139063 (P-1,B1=2000000000,B2=401927737170960) That gets me to the top of the list of P-1 factors for Mersenne numbers! And all thanks to the new version 30.8 of mprime.