mersenneforum.org

mersenneforum.org (https://www.mersenneforum.org/index.php)
-   Aliquot Sequences (https://www.mersenneforum.org/forumdisplay.php?f=90)
-   -   Sequence terminations and merges (https://www.mersenneforum.org/showthread.php?t=11837)

unconnected 2009-12-27 20:40

[URL="http://factordb.com/search.php?se=1&aq=761976&action=last20&fr=&to="]761976[/URL] merges with 36108.

Batalov 2009-12-31 20:28

[URL="http://factordb.com/search.php?se=1&aq=754848"]754848[/URL] terminated with a five digit prime. Happy New Year! :xmastree:

unconnected 2010-01-01 18:23

[URL="http://factordb.com/search.php?se=1&aq=767976&action=last20&fr=&to="]767976[/URL] merges with 5748.

schickel 2010-01-01 21:13

Another one in Wieb's range....[URL="http://factordb.com/aliquot.php?type=1&aq=425700&big=1"]425700[/URL] peaks at 85 digits:[quote=factordb]10 Merges:
[B]Merge at n=2117 with 367514, n=0[/B] (dropped below start)
[B]Merge at n=2118 with 89106, n=646
Merge at n=2120 with 34578, n=185
Merge at n=2886 with 20546, n=0 [/B](dropped below start)
[B]Merge at n=2887 with 7360, n=2
Merge at n=2889 with 6264, n=2
Merge at n=2939 with 5808, n=5
Merge at n=2940 with 5180, n=1
Merge at n=2941 with 4396, n=2
Merge at n=2942 with 660, n=25[/B][/quote]

kar_bon 2010-01-02 15:09

after comparing my pages with the FactorDB i found this missing terminations:

from W.Creyaufm├╝ller's page: C.Stern has done 98616

614240 merged with 553986 which was done by unconnected.

859440 was mentioned on Wolfgangs page, done by biwema.

others not mentioned here:
475440, 603204, 691096, 859368 (this seems biwema's, too)

and last but not least: the FactorDB shows 403305 as open sequence, but it is not!

schickel 2010-01-04 04:47

Another from Wieb's range
 
Here's the latest from [URL="http://factordb.com/search.php?se=1&aq=410232&action=last20&fr=&to="]410232[/URL]:[quote=factordb]2 Merges:
[B]Merge at n=1964 with 258272, n=1
Merge at n=1965 with 74448, n=2[/B][/quote]Missed again! I keep hoping to find another pair like 314718/4788....:sad:

wolfcrey 2010-01-04 12:15

[quote=schickel;200805]Here's the latest from [URL="http://factordb.com/search.php?se=1&aq=410232&action=last20&fr=&to="]410232[/URL]:Missed again! I keep hoping to find another pair like 314718/4788....:sad:[/quote]

I checked it with my own files:
[FONT=Arial]410232:i1965 = 74448:i2 = 392880[/FONT]
[FONT=Arial]Wolfgang[/FONT]

10metreh 2010-01-04 12:29

[QUOTE=wolfcrey;200819]I checked it with my own files:
[FONT=Arial]410232:i1965 = 74448:i2 = 392880[/FONT]
[FONT=Arial]Wolfgang[/FONT][/QUOTE]

Is there any chance of ever obtaining Wieb's files?

kar_bon 2010-01-04 13:18

[QUOTE=10metreh;200820]Is there any chance of ever obtaining Wieb's files?[/QUOTE]

I've mailed him 4 months ago: he's aware of this forum and the summary-pages and agreed to have all data in one database.
But there was no answer about my question of giving his data to fill in.

unconnected 2010-01-06 06:01

[URL="http://factordb.com/search.php?se=1&aq=771108&action=last20"]771108[/URL] terminates. Max height is 109 :smile:

Greebley 2010-01-06 15:02

[quote=unconnected;201024][URL="http://factordb.com/search.php?se=1&aq=771108&action=last20"]771108[/URL] terminates. Max height is 109 :smile:[/quote]
Nice! That is fourth highest for our terminations. We now have 10 over 100 (and 2 at 100).


All times are UTC. The time now is 03:17.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.