New Sub Project "Perfect Cuboid" Tasks 4 Sep 2017  (also called a perfect box)
 Badges (Their are no Badges Yet for Siever) New 3 Oct 2017
Microsoft Windows running on an AMD x86_64 or Intel EM64T CPU
Linux running on an AMD x86_64 or Intel EM64T CPU
Linux running on ARM, hardware FP
Linux running on 64-bit ARM
 
4 Sept 2017 ARM Apps for Perfect Cuboid        
The Perfect Cuboid app is now also available for 32 and 64 bit ARM systems running with Linux.

4 Sept 2017 Badges for Perfect Cuboid        
We have now also badges for Perfect Cuboid and the application is also available for 64 bit Linux.

3 Sept 2017 New app Perfect Cuboid        
The new subproject Perfect Cuboid is now in Test for 64 Bit Windows systems.
Perfect Cuboid aims to find Perfect Cuboid or prove that if it exists, his space diagonal must be greater than 2⁶³.
During the moving up we also will find almost perfect cuboids: Edge and Face cuboids (completely) and some kinds of cuboids in complex numbers  (Perfect Complex, Imaginary and Twilight).
 -> progress
-> Top teams
-> Top participants
 
Looks like we may have missed out on.....
23 Sept 2017 Collatz: Search finished
After less than one and a half months (14 August to 23 September), we were able to successfully complete our search project:
 

• We have found all the smaller path records as well as all starting numbers <2⁶⁰, whose maximum > 2 * 10¹⁶ * starting number (only such numbers are given as candidates) which were found by other persons (mainly Tomas Olivera e Silva and Eric Roosendaal); and thus validate our approach in the opposite direction.
• We have found 4 new path records and have been able to prove that all starting numbers <87 * 2⁶⁰ (in particular also all <10²⁰) land at 1 and pass into the trivial cycle.
• Thus, we have also shown that a non-trivial cycle must consist of more than 17 billion sequence members

 

Excellent stuff... Well done everyone