fond of a factor? Urn yourself to become remains - Page 46

flashjh · 2012-09-11, 03:27

Quote:

Originally Posted by Jwb52z

P-1 found a factor in stage #2, B1=490000, B2=10657500.
UID: Jwb52z/Clay, M45721331 has a factor: 2068776071860350403687

70.809 bits

I don't know why this one was not found earlier unless it was just barely missed by the earlier testing. I'm also puzzled as to why I suddenly got a 45M exponent when I had been getting 57M to 59M range numbers.

James' site says it was only TFd to 61.

Jwb52z · 2012-09-11, 15:20

Quote:

Originally Posted by flashjh

James' site says it was only TFd to 61.

Ah, thank you. I don't have all these helpful related sites saved to check, yet.

ckdo · 2012-09-11, 21:27

Quote:

Originally Posted by flashjh

James' site says it was only TFd to 61.

Actually, James' site says it was TF'd to 70.

LaurV · 2012-09-12, 03:30

No, it says 61. See the table called "TF results". In the table above it, the 68 (and respective 70) are the "limits" up to which TF has to be done by P95 (respective mfakt*).

Dubslow · 2012-09-12, 03:38

Quote:

Originally Posted by LaurV

No, it says 61. See the table called "TF results". In the table above it, the 68 (and respective 70) are the "limits" up to which TF has to be done by P95 (respective mfakt*).

Umm... to 61 is the only result that was directly reported to Mersenne-aries, as opposed to trawled off of PrimeNet. But on PrimeNet it was TFd to 70. (Note that it says "Actual" just left of the 70.)

LaurV · 2012-09-12, 05:19

hm... That makes sense too. Maybe James can enlighten us... How is it?

aketilander · 2012-09-12, 05:37

Quote:

Originally Posted by Dubslow

Umm... to 61 is the only result that was directly reported to Mersenne-aries, as opposed to trawled off of PrimeNet. But on PrimeNet it was TFd to 70. (Note that it says "Actual" just left of the 70.)

Actually, many intermediary results disappeard from James site a while ago (a month maybe), but to the best of my knowledge the table is still acurate: "Trial Factoring; Limit" / "Actual".

Maybe it was a case of reducing the size of the database?

ckdo · 2012-09-12, 17:07

M435503 has a factor: 201346837275660859617983 (78 bits)

k = 7 * 139 * 281 * 845,482,271,069

ECM B1=50k

Jwb52z · 2012-09-13, 07:52

P-1 found a factor in stage #1, B1=530000.
UID: Jwb52z/Clay, M57650287 has a factor: 6203229201487897920327616351

92.325 bits.

chalsall · 2012-09-13, 17:25

Quote:

Originally Posted by Jwb52z

P-1 found a factor in stage #1, B1=530000.
UID: Jwb52z/Clay, M57650287 has a factor: 6203229201487897920327616351

92.325 bits.

Everyone knows.

Unless it's exceptional, there's no need to tell us....

Dubslow · 2012-09-13, 18:12

Quote:

Originally Posted by chalsall

Everyone knows.

Unless it's exceptional, there's no need to tell us....

>90 bits is rather exceptional... and that's what this thread is for anyways, exceptional or not. (It had been de facto P-1 factors only for a while, but recently TF factors have started reappearing.)

2012-09-12, 17:07	#503
ckdo Dec 2007 Cleves, Germany 1000010010₂ Posts	"That escalated quickly!" M435503 has a factor: 201346837275660859617983 (78 bits) k = 7 * 139 * 281 * 845,482,271,069 ECM B1=50k

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
A new factor of F11?!	siegert81	FermatSearch	2	2018-01-24 04:35
A fond farewell	rogue	Lounge	10	2008-11-21 05:25
who can factor 10^100+27?	aaa120	Factoring	17	2008-11-13 19:23
New factor	fivemack	ElevenSmooth	4	2008-05-07 19:28
Shortest time to complete a 2^67 trial factor (no factor)	dsouza123	Software	12	2003-08-21 18:38

2012-09-12, 03:30	#499
LaurV Romulan Interpreter Jun 2011 Thailand 22670₈ Posts	No, it says 61. See the table called "TF results". In the table above it, the 68 (and respective 70) are the "limits" up to which TF has to be done by P95 (respective mfakt*).

2012-09-12, 05:19	#501
LaurV Romulan Interpreter Jun 2011 Thailand 2³·17·71 Posts	hm... That makes sense too. Maybe James can enlighten us... How is it?

2012-09-13, 07:52	#504
Jwb52z Sep 2002 17×47 Posts	P-1 found a factor in stage #1, B1=530000. UID: Jwb52z/Clay, M57650287 has a factor: 6203229201487897920327616351 92.325 bits.