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-   -   fond of a factor? Urn yourself to become remains (https://www.mersenneforum.org/showthread.php?t=13977)

Viliam Furik 2021-06-09 14:03

[QUOTE=kruoli;580427]What about manually setting [C]DaysOfWork=0[/C]? That way, you'll never get automatic work and the results still will be reported normally.[/QUOTE]

That may help. I'll try it.

Viliam Furik 2021-06-09 14:08

[QUOTE=sweety439;580439]When I add the P-1 method with B1=740000, B2=20264000 for [URL="http://factordb.com/index.php?id=1100000002602478101"]this prime in factordb[/URL], it says "Err: Calculated grouporder 2004109083829816426995592902<28> is not within B1/B2 bounds (B1=740000, B2=20264000). Please check your result!"[/QUOTE]

Maybe it's got a problem with the exponent P=103695649.

2004109083829816426995592902 = 2 * 3 * 281 * 29917 * 47269 * 8106041 * 103695649, so the biggest factor is 103695649, the exponent, which is bigger than B2=20264000.

Is it possible it's not accounting for the special form of Mersenne factors, which allows ignoring P as a factor of Q-1 (Q is the factor found) and only using the general rules for factors found by the P-1 method?

axn 2021-06-09 14:20

[QUOTE=Viliam Furik;580442]Is it possible it's not accounting for the special form of Mersenne factors, which allows ignoring P as a factor of Q-1 (Q is the factor found) and only using the general rules for factors found by the P-1 method?[/QUOTE]
That's probably it.

Viliam Furik 2021-06-10 09:11

[M]M1001159[/M] has a 120.912-bit (37-digit) factor: [url=https://www.mersenne.ca/M1001159]2500439903769890259112379635985290039[/url] (P-1,B1=10000000,B2=1110000000)

Is it Christmas already? This one should come in at about 365th place.

firejuggler 2021-06-10 10:30

No, no, no, I have no budget for christmass right now. So it is NOT christmass. At least for another 6 month.

Uncwilly 2021-06-10 13:51

[QUOTE=Viliam Furik;580523][M]M1001159[/M] has a 120.912-bit (37-digit) factor: [url=https://www.mersenne.ca/M1001159]2500439903769890259112379635985290039[/url] (P-1,B1=10000000,B2=1110000000)

Is it Christmas already? This one should come in at about 365th place.[/QUOTE]
You have bet my best. I am in the 120 bit club too. Very nice catch.
:faf:

firejuggler 2021-06-12 19:01

M[M]23554211[/M] has a 114.027-bit (35-digit) factor: [URL="https://www.mersenne.ca/M23554211"]21164767805799094411604254592575543[/URL] (P-1,B1=1200000,B2=79200000)
I also have a near Christmass time

LaurV 2021-06-13 04:28

We found both an [URL="https://www.mersenne.ca/exponent/35124833"]98.x[/URL] and [URL="https://www.mersenne.ca/exponent/35123269"]101.x[/URL] bits factors in 35.1M range, [STRIKE]what's worth mentioning them is the fact they were both found in a row, one after the other, and both found [U]in stage 1[/U] (!)
They are not sync'd on James' site yet, but they are indeed very smooth![/STRIKE]

Viliam Furik 2021-06-13 09:33

[QUOTE=LaurV;580844]We found both an [URL="https://www.mersenne.org/report_exponent/?exp_lo=35120669&full=1"]98.x[/URL] and [URL="https://www.mersenne.org/report_exponent/?exp_lo=35124833&full=1"]101.x[/URL] bits factors in 35.1M range, what's worth mentioning them is the fact they were both found in a row, one after the other, and both found [U]in stage 1[/U] (!)
They are not sync'd on James' site yet, but they are indeed very smooth![/QUOTE]

Your 98.x factor directs to 83.x factor and 101.x factor directs to 98.x factor.

LaurV 2021-06-13 10:06

Fixed, thank you very much! (I didn't edit the quote in your post, only my post). I got lost in so many factors and links. But in this case, the 101 is not anymore "smooth". My mistake. As they were not yet on mersenne.ca at the time, I wrongly remembered their size (which is displayed when reporting), and I assumed the 101 was the smooth one (the "smoothness" is deduced from the amount of credit given, you don't need to do any calculation or to see the k value to know your factor is very smooth, hehe).

Therefore, to repair the damage, take this new [URL="https://www.mersenne.ca/exponent/35126153"]115 bits[/URL] guy here... :razz:

Jwb52z 2021-06-14 23:57

[QUOTE=sweety439;580439]When I add the P-1 method with B1=740000, B2=20264000 for [URL="http://factordb.com/index.php?id=1100000002602478101"]this prime in factordb[/URL], it says "Err: Calculated grouporder 2004109083829816426995592902<28> is not within B1/B2 bounds (B1=740000, B2=20264000). Please check your result!"[/QUOTE]Um, I don't know how to check the result. I just report what the screen and results file shows me.


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