79M 79.3M to 2^59 (low prio)

smh · 2003-02-20, 20:06

As a low prio project:

79M 79.3M Factoring to 2^59

nitro · 2003-02-22, 19:16

Quote:

Originally Posted by smh

As a low prio project:

79M 79.3M Factoring to 2^59

I know you're probably on a quicker machine, but I factored M79299719 to 72 bits on a PII-300, took 9 months. The P-1 took one month.

regards

garo · 2003-02-23, 01:12

Except that he is only doing it to 2^59 which conceivable makes it atleast 2^13 times faster.

smh · 2003-02-23, 10:35

For now, i'm only testing numbers that are factored to 2^58, and bring them to the 2^59 level. I might bring them to 2^60 later, or do the 2^59 level for some lower numbers.

Another question.

Do you guys also plan to bring numbers below 2M to a higher level?

tha · 2003-02-23, 11:18

Quote:

Originally Posted by smh

Do you guys also plan to bring numbers below 2M to a higher level?

Everyone decides for him/herself what suits best. There is at least one person checking in results in that range every week, for quite some time now. Recently all exponents were factored up to 2^57. He is continuing now up to 2^58. But I guess he would appreciate help in that range.

smh · 2003-02-23, 13:43

Factoring these numbers is getting time consuming, and a lot of these numbers (especially the lower ones) have already had a lot of ECM or P-1.

For GIMPS it doesn't really matter if these numbers are factored or not, since they are already tested composite at least twice.

If you want to factor these numbers, there are probably more efficient ways then trial factoring.

jocelynl · 2003-02-24, 13:59

What are you talking about?
79M - 79.3M is the end of the range. (79 300 000)

Are you doing 7.9m (7 900 000)?
If so, then yes, these have been done.
you should do 79M this range is very little time consuming it is very fast at 2^58 one or two minutes per number.

Please let us know.

tha · 2003-02-24, 19:30

Quote:

Originally Posted by jocelynl

What are you talking about?

He is writing about the range 0 to 2,000,000

YotN,

Tha

smh · 2003-02-24, 19:54

Yes i am factoring 79M - 79.3M. It takes about a minute per number to factor from 2^58 to 2^59 and about 2500 numbers (IIRC) to be done in this range. But like i said, it's at low priority for me. The pc isn't on 24/7 and i might use the cpu for other things. Guess it will be done by the end of the week.

The 2M question had nothing to do with my reservation. I was just wondering if some people are planning to bring that range to the next bit level

trif · 2003-02-25, 00:15

I know there is someone working down in that range because nofactor.cmp shows exponents there are being updated.

Getting all exponents to 58 bits is going to be a long time out there because there are many exponents that are assigned in PrimeNet that are only done to 57. It will be a very long time before they are all done.

smh · 2003-03-01, 23:34

Range done, and results sent to George.

2003-02-20, 20:06	#1
smh "Sander" Oct 2002 52.345322,5.52471 10010100101₂ Posts	As a low prio project: 79M 79.3M Factoring to 2^59

2003-02-23, 01:12	#3
garo Aug 2002 Termonfeckin, IE AD0₁₆ Posts	Except that he is only doing it to 2^59 which conceivable makes it atleast 2^13 times faster.

2003-02-23, 10:35	#4
smh "Sander" Oct 2002 52.345322,5.52471 29·41 Posts	For now, i'm only testing numbers that are factored to 2^58, and bring them to the 2^59 level. I might bring them to 2^60 later, or do the 2^59 level for some lower numbers. Another question. Do you guys also plan to bring numbers below 2M to a higher level?

2003-02-23, 13:43	#6
smh "Sander" Oct 2002 52.345322,5.52471 29×41 Posts	Factoring these numbers is getting time consuming, and a lot of these numbers (especially the lower ones) have already had a lot of ECM or P-1. For GIMPS it doesn't really matter if these numbers are factored or not, since they are already tested composite at least twice. If you want to factor these numbers, there are probably more efficient ways then trial factoring.

2003-02-24, 13:59	#7
jocelynl Sep 2002 106₁₆ Posts	What are you talking about? 79M - 79.3M is the end of the range. (79 300 000) Are you doing 7.9m (7 900 000)? If so, then yes, these have been done. you should do 79M this range is very little time consuming it is very fast at 2^58 one or two minutes per number. Please let us know.

2003-02-24, 19:54	#9
smh "Sander" Oct 2002 52.345322,5.52471 29×41 Posts	Yes i am factoring 79M - 79.3M. It takes about a minute per number to factor from 2^58 to 2^59 and about 2500 numbers (IIRC) to be done in this range. But like i said, it's at low priority for me. The pc isn't on 24/7 and i might use the cpu for other things. Guess it will be done by the end of the week. The 2M question had nothing to do with my reservation. I was just wondering if some people are planning to bring that range to the next bit level

2003-02-25, 00:15	#10
trif Aug 2002 2·101 Posts	I know there is someone working down in that range because nofactor.cmp shows exponents there are being updated. Getting all exponents to 58 bits is going to be a long time out there because there are many exponents that are assigned in PrimeNet that are only done to 57. It will be a very long time before they are all done.

2003-03-01, 23:34	#11
smh "Sander" Oct 2002 52.345322,5.52471 29·41 Posts	Range done, and results sent to George.