You can use listtopprimes to find the top primes for each form which were found by Primecoin, e.g "listtopprimes 14 1CC" to get the largest Cunningham chains of first kind of length 14 (abbreviated as CC14f).

As I've just seen today, Primecoin broke the record for CC14f just two weeks ago. This is the first world record for Primecoin since more than 2 years.

2017-01-25: CC14f with 96 digits: 814204479584287721291003734102406590210007590854164398588152723240001514789312*47#-1

Update of my Cunningham chain record list will follow shortly.

Regards,
Dirk

I updated the Cunningham chain record list yesterday:

http://users.cybercity.dk/~dsl522332/math/Cunningham_Chain_records.htm

Congrats for the first Cunningham chain of length 13 with more than 100 digits!

I updated the Cunningham chain record list three days ago:

http://users.cybercity.dk/~dsl522332/math/Cunningham_Chain_records.htm

Again Primecoin improved the records for Cunningham chains of length 10 and 12.

The new Cunningham chain of length 13 is very imressive!


I already updated the Cunningham chain record list.

http://users.cybercity.dk/~dsl522332/math/Cunningham_Chain_records.htm


And Jens also updated his list for Simultaneous prime records:

http://users.cybercity.dk/~dsl522332/math/simultprime.htm


Henri also updated his BiTwin record page end of August:

http://www.primenumbers.net/Henri/fr-us/BiTwinRec.htm

Regards,
Dirk

Page is up again!

Hello,
I have updated my Cunningham chain record list again:

http://users.cybercity.dk/~dsl522332/math/Cunningham_Chain_records.htm

Best regards,
Dirk

Hello,
I have updated my Cunningham chain record list:

http://users.cybercity.dk/~dsl522332/math/Cunningham_Chain_records.htm

Congratulations to all who found new records!

Please send me a PM if you want to have your real name on the record list. First of all you of course need to confirm that you really found the record like it's done in this thread.

Regards,
Dirk Augustin

Hello,
let me introduce myself.

I'm the owner of the Cunningham chain world record list and have been informed by one of your members about Primecoin and the new Cunningham chain records which were generated in this project.

I want to congratulate everyone who participated in Primecoin and especially those who actually found these new great records!

I'm very glad to see that the Primecoin project increased the interest in searching for prime chains, something I'm doing now for over 10 years.

For updating my record list I will need as much details as possible, e.g. who discovered the record chains and when. In addition I would appreciate to get a short description of Primecoin (project and software used) which i can put on my webpage.

http://users.cybercity.dk/~dsl522332/math/Cunningham_Chain_records.htm


Best regards,
Dr. Dirk Augustin