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Forum: GPU to 72 2022-05-22, 04:05
Replies: 4
Views: 356
Posted By alpertron
I've just imported the factoring limits report...

I've just imported the factoring limits report from 49.9M to 50M (the URL is https://www.mersenne.org/report_factoring_effort/?exp_lo=49900000&exp_hi=50000000&bits_lo=1&bits_hi=99&tftobits=72) to...
Forum: Factoring 2022-05-13, 17:12
Replies: 86
Views: 89,020
Posted By alpertron
The first site is limited to 70 digits and the...

The first site is limited to 70 digits and the Magma calculator failed when trying to factor a 70-digit composite number:

print Factorization(10^69+2607) returns: The computation exceeded the time...
Forum: Factoring 2022-05-13, 11:40
Replies: 86
Views: 89,020
Posted By alpertron
Notice that the third to the sixth links point to...

Notice that the third to the sixth links point to calculators that can only factor small numbers.
Forum: Factoring 2022-05-12, 21:16
Replies: 86
Views: 89,020
Posted By alpertron
I would need some moderator to change the first...

I would need some moderator to change the first post of this thread.

"Java ECM (java applet)" should be changed to "HTML5/Javascript/WebAssembly web application." (or "web application" if the...
Forum: GPU to 72 2022-04-27, 03:36
Replies: 4
Views: 356
Posted By alpertron
Thanks for the update. Notice that in the...

Thanks for the update.

Notice that in the range 49.x the Avg B2 values are wrong if the numbers in the Low P-1 column are correct.
Forum: GPU to 72 2022-04-26, 12:45
Replies: 4
Views: 356
Posted By alpertron
Error in Low Composite Cleanup page

At this moment I'm running P-1 algorithm on the range M16.0 using bounds B1 = 1M, B2 = 500M.

I found that the numbers in the columns named Low P-1 and Avg B2 in https://www.gpu72.com/low/ do not...
Forum: Data 2022-04-23, 18:48
Replies: 134
Views: 8,656
Posted By alpertron
I'm working on the range 16.1M to have at least...

I'm working on the range 16.1M to have at least 4000 numbers factored (there were only 5 factors missing and I found 3). After finishing this range I will continue with 16.0M, 15.3M, 16.5M, 16.8M and...
Forum: Data 2022-04-11, 17:33
Replies: 1,401
Views: 176,666
Posted By alpertron
According to https://mersenne.ca, there is a new...

According to https://mersenne.ca, there is a new factor for 8.1 and 8.7 per day and a new factor for 15.6 in 2 days. This means that these ranges should be finished in about one week. So no help...
Forum: Data 2022-04-11, 15:11
Replies: 1,401
Views: 176,666
Posted By alpertron
I found that the range 15.20M to 15.22M has no...

I found that the range 15.20M to 15.22M has no P-1 done. If you want, I can run P-1 in that range.
Forum: Data 2022-04-10, 23:35
Replies: 1,401
Views: 176,666
Posted By alpertron
With the new factor of M18868373, the range 18.8M...

With the new factor of M18868373, the range 18.8M is finally below 2000.
Forum: Data 2022-04-09, 15:10
Replies: 1,401
Views: 176,666
Posted By alpertron
I found two new factors, so everything (software...

I found two new factors, so everything (software and hardware) is OK:


Manual testing 18871889 F-PM1 2022-04-09 12:39 0.0 Factor: 409345190904906788363497 / (P-1, B1=1000000,...
Forum: Data 2022-04-08, 16:55
Replies: 1,401
Views: 176,666
Posted By alpertron
I'm working on the range 18.8M, but for several...

I'm working on the range 18.8M, but for several days there was no factorization:


Manual testing 18866857 NF-PM1 2022-04-08 16:50 0.0 B1=1000000, B2=500458530 29.8282
Manual...
Forum: Data 2022-04-01, 01:51
Replies: 1,401
Views: 176,666
Posted By alpertron
There is a missing comma in the first line:...

There is a missing comma in the first line: 4,209961,589,561,203

In the last line (49.9M) there are 1214 numbers with low P-1. This means that 1980 - 1214 = 766 numbers have P-1 done with B2 >...
Forum: PrimeNet 2022-03-27, 12:45
Replies: 123
Views: 31,449
Posted By alpertron
Numbers on that range can be reserved for 10 days...

Numbers on that range can be reserved for 10 days only. So after this period, either the numbers are processed, or unreserved.
Forum: PrimeNet 2022-03-25, 23:42
Replies: 2
Views: 309
Posted By alpertron
Assign credit to proper computer when using manual submission form

I'm running P-1 in a computer labeled i5_11400, but Prime95 does not communicate directly with Prime95. I use the manual submission form to send the contents of the file results.json.txt

Each line...
Forum: Data 2022-03-25, 15:51
Replies: 1,401
Views: 176,666
Posted By alpertron
Ok. I will start as soon the range 14.1M is...

Ok. I will start as soon the range 14.1M is complete.
Forum: Data 2022-03-25, 14:58
Replies: 1,401
Views: 176,666
Posted By alpertron
There are only two factors missing in my range...

There are only two factors missing in my range 14.1M. If you want, I can reserve the range 18.85M to 18.9M.
Forum: Data 2022-03-22, 12:09
Replies: 1,401
Views: 176,666
Posted By alpertron
Maybe this is useful: I'm working on he range...

Maybe this is useful: I'm working on he range 14.1M which is similar, and I'm using the bounds B1 = 2M, B2 = 1G. I reserved 20 GB of RAM for Prime95. I found more than 40 factors in the last month.
Forum: mersenne.ca 2022-03-09, 12:39
Replies: 917
Sticky: mersenne.ca
Views: 120,517
Posted By alpertron
OK. I understand now. Thanks.

OK. I understand now. Thanks.
Forum: mersenne.ca 2022-03-09, 03:04
Replies: 917
Sticky: mersenne.ca
Views: 120,517
Posted By alpertron
I found that in two different pages of...

I found that in two different pages of mersenne.ca, the probability of success of P-1 are computed differently.

For example, in https://www.mersenne.ca/exponent/14120003 we can see that the...
Forum: Data 2022-02-22, 13:45
Replies: 1,401
Views: 176,666
Posted By alpertron
I'm starting the range 14.1 at this moment.

I'm starting the range 14.1 at this moment.
Forum: Data 2022-02-21, 13:26
Replies: 1,401
Views: 176,666
Posted By alpertron
After 21 days, there are less than 2000 to go.

After 21 days, there are less than 2000 to go.
Forum: Science & Technology 2022-02-07, 11:55
Replies: 50
Views: 5,939
Posted By alpertron
Yesterday I received Pfizer. I already had...

Yesterday I received Pfizer. I already had Sputnik V and Moderna.
Forum: Lounge 2022-01-30, 14:39
Replies: 14
Views: 2,009
Posted By alpertron
An interesting variation of music based on the...

An interesting variation of music based on the decimal representation of the Mersenne prime would be the following:

Start with the note C4. Play the number of notes of the leftmost digit in...
Forum: Factoring 2022-01-28, 20:10
Replies: 55
Views: 4,572
Posted By alpertron
It is not clear. Are the keys used for business...

It is not clear. Are the keys used for business or no longer used?
Showing results 1 to 25 of 1000

 
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