Probability

Author	Message
AT Hiker Send message Joined: 21 Sep 18 Posts: 20 Credit: 66,803,284 RAC: 0	Message 952 - Posted: 28 Oct 2018, 3:00:25 UTC Is there a known probability of finding an Amicable Number? ID: 952 · Rating: 0 · rate: / Reply Quote

Sergei Chernykh Project administrator Project developer Send message Joined: 5 Jan 17 Posts: 534 Credit: 72,451,573 RAC: 0	Message 953 - Posted: 28 Oct 2018, 7:48:16 UTC - in response to Message 952. There are 4,197,265 known amicable pairs below 10²⁰ or approximately 1 pair per 23.825*10¹² numbers. So the probability is low, very low if you just check numbers one by one. If you search them in more clever order, it can be much higher for some ranges. This project was founding thousands pairs per day at some stage, but now it's chewing through last ranges which are unlikely to have new pairs. ID: 953 · Rating: 0 · rate: / Reply Quote

AT Hiker Send message Joined: 21 Sep 18 Posts: 20 Credit: 66,803,284 RAC: 0	Message 954 - Posted: 29 Oct 2018, 2:58:41 UTC - in response to Message 953. So at the current rate how long to chew through this group? ID: 954 · Rating: 0 · rate: / Reply Quote

Sergei Chernykh Project administrator Project developer Send message Joined: 5 Jan 17 Posts: 534 Credit: 72,451,573 RAC: 0	Message 955 - Posted: 29 Oct 2018, 7:03:09 UTC - in response to Message 954. This page shows it: https://sech.me/boinc/Amicable/server_status.php ETA at current speed (search up to 10²⁰) Mar 2019 ID: 955 · Rating: 0 · rate: / Reply Quote

AT Hiker Send message Joined: 21 Sep 18 Posts: 20 Credit: 66,803,284 RAC: 0	Message 956 - Posted: 29 Oct 2018, 12:28:48 UTC - in response to Message 955. Thanks ID: 956 · Rating: 0 · rate: / Reply Quote