Looking to impress your Ruby friends by calculating the largest known prime, 2 ** 136_279_841-1? On Ruby 3.4.0-preview2 and earlier, 2 ** 136_279_841-1 logs a warning and returns Infinity 😔: 2 ** 136_279_841-1 # warning: in a**b, b may be too big # => Infinity Thanks to @mametter, Ruby 3.4 will handle this calculation just fine! See Do not round a**b to infinity. Knowing this, you excitedly use your ruby manager of choice to pull down ruby master: You run ruby -e "puts 2 ** 136_279_841-1", and ...