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Forum: Aliquot Sequences 2020-03-28, 10:21
Replies: 247
Views: 9,509
Posted By gd_barnes
I have completed base 17 up to exponent 97 to >=...

I have completed base 17 up to exponent 97 to >= 90 digits.

All odd exponents are trivially terminated.

Even exponents terminated:
17^2
17^12
17^16
17^24
17^48
Forum: Conjectures 'R Us 2020-03-27, 19:59
Replies: 32
Views: 1,221
Posted By gd_barnes
Put more simply for R1024, for k=81 all n's have...

Put more simply for R1024, for k=81 all n's have a numeric covering set of factors [5, 41]. For k=9 and 36 that is not the case. They require algebraic factors for the even n to eliminate them.
Forum: Conjectures 'R Us 2020-03-27, 09:48
Replies: 32
Views: 1,221
Posted By gd_barnes
Because it is the lowest k that has a known...

Because it is the lowest k that has a known covering set of numeric factors for R1024. A factor of 5 covers even-n and a factor of 41 covers odd-n.

Smaller k's k==(1 mod 3, 1 mod 11, & 1 mod 31)...
Forum: Conjectures 'R Us 2020-03-27, 00:53
Replies: 3,602
Views: 203,843
Posted By gd_barnes
Both, lol. Original post corrected. :-)

Both, lol.


Original post corrected. :-)
Forum: Conjectures 'R Us 2020-03-26, 10:40
Replies: 3,602
Views: 203,843
Posted By gd_barnes
Ian and I have completed S762 to n=200K; 2 primes...

Ian and I have completed S762 to n=200K; 2 primes were found for n=100K-200K shown below; 5 k's remain; base released.

Primes:
141*762^149740+1
203*762^178410+1
Forum: Riesel Prime Search 2020-03-26, 02:05
Replies: 326
Views: 26,768
Posted By gd_barnes
NPLB only works on k=301 to 1001. See the PRPnet...

NPLB only works on k=301 to 1001. See the PRPnet servers thread there to see exactly what test depth different k-ranges are at. In a synopsis, k=301-349 is at n=~2.7M, k=351-399 is at n=2M,...
Forum: Conjectures 'R Us 2020-03-24, 21:37
Replies: 1,037
Views: 59,033
Posted By gd_barnes
I am in the process of sieving k=25G-55G for...

I am in the process of sieving k=25G-55G for n=50K-100K. It will take a few months.
Forum: Conjectures 'R Us 2020-03-23, 18:42
Replies: 831
Views: 55,671
Posted By gd_barnes
203*762^178410+1 is prime

203*762^178410+1 is prime
Forum: Conjectures 'R Us 2020-03-22, 20:35
Replies: 3,602
Views: 203,843
Posted By gd_barnes
S750 is complete to n=10K; 1324 primes were found...

S750 is complete to n=10K; 1324 primes were found for n=2500-10K; 1550 k's remain; base released.
Forum: Conjectures 'R Us 2020-03-20, 06:42
Replies: 219
Views: 22,189
Posted By gd_barnes
Thank you Kenneth and Mark! :smile:

Thank you Kenneth and Mark! :smile:
Forum: Conjectures 'R Us 2020-03-19, 06:33
Replies: 1,037
Views: 59,033
Posted By gd_barnes
I double checked your work. Here are the...

I double checked your work. Here are the results:

Your files primes for n=25K-50K: 9030
primes removed for duplicate k's: 62
Unique k's with primes for n=25K-50K: 8968

In my testing I found...
Forum: Conjectures 'R Us 2020-03-19, 04:16
Replies: 219
Views: 22,189
Posted By gd_barnes
Can someone post the latest Windows version of...

Can someone post the latest Windows version of srsieve2 here along with a README or other help file that shows how to use it ?

I would like to do some sieving on many k's for Riesel base 3. All...
Forum: Conjectures 'R Us 2020-03-18, 03:30
Replies: 3,602
Views: 203,843
Posted By gd_barnes
Reserving R988 to n=300K for Ian and me.

Reserving R988 to n=300K for Ian and me.
Forum: Aliquot Sequences 2020-03-18, 03:12
Replies: 247
Views: 9,509
Posted By gd_barnes
385^49 trivially terminates. All of base...

385^49 trivially terminates.

All of base 1155 has been completed to >= 102 digits.

No reservation.
Forum: Conjectures 'R Us 2020-03-15, 08:59
Replies: 785
Views: 57,055
Posted By gd_barnes
Ian and I have completed S102 to n=300K; no...

Ian and I have completed S102 to n=300K; no primes were found for n=250K-300K; 3 k's still remain; base released.
Forum: And now for something completely different 2020-03-13, 20:22
Replies: 235
Views: 17,815
Posted By gd_barnes
Thanks. Are you still working on CK394 ?

Thanks.


Are you still working on CK394 ?
Forum: Conjectures 'R Us 2020-03-13, 03:13
Replies: 143
Views: 26,593
Posted By gd_barnes
8 sieve files for the aforementioned recommended...

8 sieve files for the aforementioned recommended bases have been added to the reservations page. :smile:
Forum: Conjectures 'R Us 2020-03-12, 20:30
Replies: 3,602
Views: 203,843
Posted By gd_barnes
Reserving S762 to n=200K for Ian and me.

Reserving S762 to n=200K for Ian and me.
Forum: Aliquot Sequences 2020-03-12, 11:01
Replies: 247
Views: 9,509
Posted By gd_barnes
I have trivially terminated 385^47, 1155^35,...

I have trivially terminated 385^47, 1155^35, 1155^37, and 1155^39.

You might consider releasing the reservation of all exponents for base 1155 due to long inactivity.

Also would it make since...
Forum: Conjectures 'R Us 2020-03-11, 23:06
Replies: 785
Views: 57,055
Posted By gd_barnes
Reserving S102 to n=300K for Ian and me.

Reserving S102 to n=300K for Ian and me.
Forum: Conjectures 'R Us 2020-03-11, 23:05
Replies: 2,070
Views: 128,599
Posted By gd_barnes
Ian and I have completed S288 to n=200K; 1 prime...

Ian and I have completed S288 to n=200K; 1 prime was found for n=100K-200K shown below; 9 k's remain; base released.


Prime:
2437*288^120654+1
Forum: Conjectures 'R Us 2020-03-11, 08:08
Replies: 831
Views: 55,671
Posted By gd_barnes
:bow wave::bounce wave::groupwave: At 4.27...

:bow wave::bounce wave::groupwave:

At 4.27 million digits this is the 20th largest prime of all time!!!

It took the top-5000 site over 10 days to verify it!

This prime is so huge that with a...
Forum: Conjectures 'R Us 2020-03-11, 06:35
Replies: 580
Views: 30,906
Posted By gd_barnes
Pepi, Can you send me the sieve file for...

Pepi,

Can you send me the sieve file for S762 as soon as possible? Yoyo recently finished sieving it. My private server will be out of work about 15 hours from this posting. That base will be...
Forum: Aliquot Sequences 2020-03-11, 06:07
Replies: 247
Views: 9,509
Posted By gd_barnes
PFP seems to have lost interest in base 385 at a...

PFP seems to have lost interest in base 385 at a low search depth for > 4 months so I did some testing on many of the exponents.

All exponents with a driver or with a factor of 3 have been...
Forum: Conjectures 'R Us 2020-03-07, 01:39
Replies: 3,602
Views: 203,843
Posted By gd_barnes
Reserving S750 to n=10K.

Reserving S750 to n=10K.
Showing results 1 to 25 of 1000

 
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