Ochem and Rao's bound on OPNs to be improved by January 1, 2017. Details in comments.

Created by JoshuaZ on 2015-12-19; known on 2017-01-01; judged wrong by JoshuaZ on 2017-01-01.

• JoshuaZ estimated 95% on 2015-12-19
• JoshuaZ said “They proved that if N is an odd perfect number with w distinct prime factor and W total prime factors (with multiplicity) then W >= (18w-31)/7. This prediction is for a bound of the for W >= aw +b with a>= 18/7. ” on 2015-12-19
• JoshuaZ said “So/rry, last should be a>18/7. ” on 2015-12-19
• JoshuaZ   judged this prediction wrong on 2017-01-01.