Issue #7395 has been updated by ko1 (Koichi Sasada). Subject changed from Negative numbers can't be primes by definition to Negative numbers can't be primes by definition Target version changed from 2.0.0 to 2.1.0 ---------------------------------------- Bug #7395: Negative numbers can't be primes by definition https://bugs.ruby-lang.org/issues/7395#change-36420 Author: zzak (Zachary Scott) Status: Assigned Priority: Normal Assignee: yugui (Yuki Sonoda) Category: lib Target version: 2.1.0 ruby -v: 2.0.0 from github: https://github.com/ruby/ruby/pull/187 By definition, a prime number can be a positive integer greater than 1. http://mathworld.wolfram.com/PrimeNumber.html -- http://bugs.ruby-lang.org/