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Old 2020-09-02, 13:18   #188
Dylan14
 
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Quote:
Originally Posted by Dylan14 View Post
Reserving n = 74, k = 80e14 - 100e14.
Range is complete:
Code:
no factor for k*2^74+1 in k range: 8000000000000000 to 9007199254740991 (127-bit factors) [mmff 0.28 mfaktc_barrett128_F64_95gs]
no factor for k*2^74+1 in k range: 9007199254740992 to 10000000000000000 (128-bit factors) [mmff 0.28 mfaktc_barrett128_F64_95gs]
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Old 2020-10-02, 13:47   #189
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Quote:
Originally Posted by matzetoni View Post
I'd like to take n=18e3-19e3, k=2e6-5e6
I have processed half of the range. PRPs for n=18000-18499, k=2e6-5e6 are attached. Found one xGF so far:

Code:
3796269*2^18431+1 is a Factor of xGF(18430,12,7)!!!!
Attached Files
File Type: zip gfnd_n18000-18499_k2M-5M.zip (491.9 KB, 133 views)
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Old 2020-10-03, 10:24   #190
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Quote:
Originally Posted by matzetoni View Post
I have processed half of the range. PRPs for n=18000-18499, k=2e6-5e6 are attached. Found one xGF so far:

Code:
3796269*2^18431+1 is a Factor of xGF(18430,12,7)!!!!
Thank you!
Once you finish the range, please attach the full list of factors found, and I will send it to Prof Keller.

Last fiddled with by ET_ on 2020-10-03 at 10:24
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Old 2020-11-15, 14:39   #191
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Taking the following gaps, to test with gfndsieve + pfgw with the -gx flag:
n: 80001-80999, k: 25e4-30e4
n: 90001-90999, k: 20e4-25e4
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Old 2020-11-17, 19:07   #192
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Hi,
I finished the range n=18k-19k, k=2M-5M and found 2 xGF divisors:
3796269*2^18431+1 is a Factor of xGF(18430,12,7)!!!!
2130243*2^18749+1 is a Factor of xGF(18746,7,5)!!!!

A list of all prps I've found is in the attached zip file.
Attached Files
File Type: zip gfnd_n18000-19000_k2M-5M.zip (976.5 KB, 106 views)
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Old 2020-11-19, 15:43   #193
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Reserving

FermatFactor=36,700e15,900e15

This should take me several months.

Matt
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Old 2020-11-19, 17:12   #194
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Quote:
Originally Posted by MattcAnderson View Post
Reserving

FermatFactor=36,700e15,900e15

This should take me several months.

Matt
Good luck!

Should we reserve just one big chunk for 815e15<k<900e15?

Luigi

Last fiddled with by ET_ on 2020-11-19 at 17:12
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Old 2020-11-20, 03:04   #195
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Luigi, I say you just reserve one big chunk. That makes bookkeeping easier.

I plan on reporting results every few weeks.


Should we reserve just one big chunk for 815e15<k<900e15? Yes

Regards,
Matt Anderson
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Old 2020-12-11, 07:32   #196
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reserving

FermatFactor=36,900e15,960e15

It may be several months before I get to this range, but it is already in my worktodo.txt file.

Regards,
Matt
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Old 2020-12-15, 00:09   #197
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Not sure how long this will take. I'm only using Google Colab free version with mmff.

Reserving:
FermatFactor=199,1000e12,1130e12
FermatFactor=198,1000e12,1130e12
FermatFactor=197,1000e12,1130e12
FermatFactor=196,1000e12,1130e12
FermatFactor=195,1000e12,1130e12
FermatFactor=194,1000e12,1130e12
FermatFactor=193,1000e12,1130e12
FermatFactor=192,1000e12,1130e12
FermatFactor=191,1000e12,1130e12
FermatFactor=190,1000e12,1130e12
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Old 2020-12-15, 12:55   #198
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Thank you Andreas!

Just keep us informed once every trimester, while you proceed
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