What is Amicable Numbers?

Amicable Numbers is an independent research project that uses Internet-connected computers to find new amicable pairs. You can contribute to our research by running a free program on your computer.

Current goal of the project is to find all amicable pairs with smallest member < 264.
All new findings are published regularly on the Amicable pairs list page.

What is the end goal of Amicable Numbers?
Why participate in it?

Though mathematics is not an experimental science, mathematicians often look for examples to test conjectures (which they then hope to prove). As the number of examples increases, so does (in a sense) their understanding of the distribution.

The goal is to collect all amicable numbers up to a very large limit. This data will facilitate theoretical research in the field: 1, 2, 3 to name a few examples. It will also help to improve understanding of the properties of Divisor function.

Join Amicable Numbers

User of the Day

User profile Profile Coleslaw
Proud Member of Team [H]ard|OCP and the [H]ard DC Commandos http://hardforum.com/forumdisplay.php?f=32


GPU application version
GPU application version is available for beta-testing now. Both AMD and NVIDIA GPUs are supported. To test it, enable "Run test applications" in project preferences here: https://sech.me/boinc/Amicable/prefs.php?subset=project
22 Feb 2017, 13:07:00 UTC · Discuss

SUSA has issued a Team Challenge starting 0000 UTC March 1.

Unfortunately, there was a bug in the challenge sign up SW that wouldn't allow the name Amicable Numbers to be shown in the project field. The bug was reported and has been corrected by Willy @ Bstats but he said it would take a while for project name to show up.

You can sign up your team HERE
18 Feb 2017, 6:11:30 UTC · Discuss

For all Gridcoin users: whitelist poll
A poll has been created to whitelist Amicable Numbers:
Whitelist Poll : Should Amicable Numbers Be Whitelisted?

For those who doesn't know what it is: Gridcoin website
8 Feb 2017, 17:53:24 UTC · Discuss

More than 1000 new amicable pairs found!
There are 1081 amicable pairs that have been found on the project so far!

Congratulations to everyone!
1 Feb 2017, 8:29:43 UTC · Discuss

Project is to be launched on January 30th!
Since everything is running smooth, I've decided to open the project for public tomorrow, on January 30th.
All participants will be able to choose/create teams then.
29 Jan 2017, 13:41:06 UTC · Discuss

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