There Are Today More Than 390 Known Pairs of Friendly Numbers by John Butcher
Rédiger une critiqueRecording information
CritiqueBrainz is a repository for Creative Commons licensed music and book reviews. It is based on data from MusicBrainz and BookBrainz, open music and book encyclopedias.
- Chat with us: Matrix, IRC, Discord
Fellow Projects
Développeurs
Brought to you by 
MetaBrainz Foundation