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James Heinrich 2021-04-16 15:37

[QUOTE=LaurV;574333]Congrats, triple 59, next one you will find will start with a quadruple 69... :razz:[/QUOTE]TJAOI did that 7 years ago: [M]M926969327[/M] has a 49.308-bit (15-digit) factor: [url=https://www.mersenne.ca/M926969327]696969697584761[/url]

slandrum 2021-04-16 15:40

[QUOTE=James Heinrich;576004]TJAOI did that 7 years ago: [M]M926969327[/M] has a 49.308-bit (15-digit) factor: [url=https://www.mersenne.ca/M926969327]696969697584761[/url][/QUOTE]

As well as double 69 in the exponent!

ATH 2021-04-16 16:46

[QUOTE=James Heinrich;576004]TJAOI did that 7 years ago: [M]M926969327[/M] has a 49.308-bit (15-digit) factor: [url=https://www.mersenne.ca/M926969327]696969697584761[/url][/QUOTE]

[M]345495211[/M]: Factored 1163[B]69696969[/B]03
[M]608055197[/M]: Factored 23981[B]69696969[/B]

petrw1 2021-04-28 04:39

Consecutive P-1 factors with repeated ending digits

Magic_8_Ball 39629561 F-PM1 2021-04-27 14:21 Factor: 63762133812827843899999
Magic_8_Ball 39605273 F-PM1 2021-04-28 03:00 Factor: 204171204894399516952237777

James Heinrich 2021-04-30 17:49

Another impressive one from Ryan (#14 on the overall biggest [url=https://www.mersenne.ca/userfactors/ecm/1/bits]list[/url], and he also got #11, #12 spots in the last 2 weeks)
[M]M4001[/M] has a 212.771-bit (65-digit) factor: [url=https://www.mersenne.ca/M4001]11228234992112410011165597181282604695853195021678012695442609737[/url] (ECM,B1=850000000,B2=14182957708936,Sigma=15234304705639590802)

petrw1 2021-05-04 17:27

9/63
 
9 P-1 factors in 63 (14.28%) attempts working on assignments with an expected success rate of 3%.

firejuggler 2021-05-05 15:55

[M]M23516089[/M] has a 70.456-bit (22-digit) factor: [url=https://www.mersenne.ca/M23516089]1619450690983460996873[/url] (P-1,B1=1200000,B2=76800000)


This is almost frustrating, as it was TF'ed to 70bit. But I really like it because the B1 is almost perfect.

k= 2^2*1 175 411 *7 323 571

firejuggler 2021-05-06 02:39

Well, I decided to run a PP1 curse on my old already factored exponent.
This is my first pp1 factor

P+1 found a factor in stage #2, B1=500000, B2=26500000.
UID: firejuggler/Maison, M8805827 has a factor: 4175293398605056163377 (P+1, B1=500000, B2=26500000)

Jwb52z 2021-05-06 18:45

P-1 found a factor in stage #2, B1=740000, B2=20264000.
UID: Jwb52z/Clay, M103695649 has a factor: 2004109083829816426995592903 (P-1, B1=740000, B2=20264000).

90.695 bits.

firejuggler 2021-05-07 15:17

Sadly, a composite
[M]M23517601[/M] has a 195.647-bit (59-digit) [b]composite[/b] (P27+P33) factor: [url=https://www.mersenne.ca/M23517601]78650091603029033018091227770166444001988216065464577593033[/url] (P-1,B1=1200000,B2=79200000)

Jwb52z 2021-05-12 14:55

UID: Jwb52z/Clay, M103808857 has a factor: 1401232317330993509639727923687 (P-1, B1=740000),

100.145 bits.


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