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Old 2021-04-02, 22:58   #1838
petrw1
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re: Post 1831

Quote:
Originally Posted by James Heinrich View Post
You do (manual results form was changed several months ago to detect and handle this).
Seems it doesn't:

Code:
Manual testing	28722943	F	2021-04-02 22:40	0.0	Factor: 4578986428371835478041 / TF: 71-72	15.9100
Manual testing	28723249	F	2021-04-02 22:40	0.0	Factor: 3416851867143956961289 / TF: 71-72	8.8773
Manual testing	28725779	F	2021-04-02 22:40	0.0	Factor: 3325594725067066329023 / TF: 71-72	8.2263
Manual testing	28721831	NF	2021-04-02 22:40	0.0	no factor from 2^71 to 2^72	16.6513

Last fiddled with by petrw1 on 2021-04-02 at 23:00
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Old 2021-04-02, 23:59   #1839
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Quote:
Originally Posted by petrw1 View Post
Seems it doesn't
Sorry, you're right. The change I was thinking of relates to detecting whether the result claims to be full-range TF or not, and some related code that handles composite factors found by TF, but the actual PrimeNet code that calculates and applies credit is outside my zone-of-control, and does not currently have any mechanism for specifying whether a range was complete or not. The data is available to the manual results form, it just can't pass that information on to where the credit is calculated and applied. Such a change would need to be applied at the George level.
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Old 2021-04-04, 15:46   #1840
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M27151489 has a 76.836-bit (24-digit) factor: 134831419346216729059463 (P-1,B1=1350000,B2=109350000)

low bit but k= 7 × 11 × 349 337 × 92 306 471 , really close to my B2 bound
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Old 2021-04-08, 03:30   #1841
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https://www.mersenne.org/report_expo...8190299&full=1


Factor: 4299246979573209796361 / TF: 71-72
Factor: 4001656651216207394857 / TF: 71-72

0.1 bits apart
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Old 2021-04-09, 11:21   #1842
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Found a new record for me

M27155813 has a 112.563-bit (34-digit) factor: 7669084564727955238545079945517857 (P-1,B1=1350000,B2=109350000)
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Old 2021-04-12, 17:10   #1843
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P-1 found a factor in stage #2, B1=746000, B2=20430000.
UID: Jwb52z/Clay, M103478927 has a factor: 118012953390073941784591 (P-1, B1=746000, B2=20430000).

76.643 bits.
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Old 2021-04-15, 18:55   #1844
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Finally, after hundreds of attempts (and thousands of curves) found my first factor with ECM Even if it is only 71bits, it shows that it is possible! 3255283
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Old 2021-04-15, 20:13   #1845
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Quote:
Originally Posted by gLauss View Post
Finally, after hundreds of attempts (and thousands of curves) found my first factor with ECM Even if it is only 71bits, it shows that it is possible! 3255283
Congrats! Nice find - may it be the first of many!
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Old 2021-04-16, 01:19   #1846
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Ryan strikes again. #11 on the all time biggest Mersenne factors list.

M4283 has a 219.268-bit (67-digit) factor: 1014581894481062086635266411284139009925301539055947709872564246847 (ECM,B1=260000000,B2=3142865025316,Sigma=6655636513802850625)

Last fiddled with by James Heinrich on 2021-04-16 at 01:21
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Old 2021-04-16, 14:14   #1847
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Quote:
Originally Posted by LaurV View Post
Congrats, triple 59, next one you will find will start with a quadruple 69...
Factor ends with ... let's see 1, 2, 3: 69.
Exponent ends with 369; and starts with 396.
Exponent has 5 out of 8 digits 6 or 9: 40%
Factor has 9 out of 23 digits 6 or 9: 39%.
Time found contains a 6 and a 9.

Code:
39626369	F-PM1	2021-04-16 06:19	Factor: 35172309356636629912369
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Old 2021-04-16, 15:31   #1848
Viliam Furik
 
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Quote:
Originally Posted by petrw1 View Post
Factor ends with ... let's see 1, 2, 3: 69.
Exponent ends with 369; and starts with 396.
Exponent has 5 out of 8 digits 6 or 9: 40%
Factor has 9 out of 23 digits 6 or 9: 39%.
Time found contains a 6 and a 9.

Code:
39626369	F-PM1	2021-04-16 06:19	Factor: 35172309356636629912369
I'm pretty sure that's supposed to be 62.5%
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