@themaninblack@lemmy.world to memes@lemmy.world • 7 months agoMath(s)lemmy.worldimagemessage-square43fedilinkarrow-up1583arrow-down129
arrow-up1554arrow-down1imageMath(s)lemmy.world@themaninblack@lemmy.world to memes@lemmy.world • 7 months agomessage-square43fedilink
minus-squareForeverComicallinkfedilink7•7 months agoAll the magic goes when you understand it’s 30+21
minus-square@iknowitwheniseeit@lemmynsfw.comlinkfedilink3•7 months agoWhy? 19 is 15+4 but is still prime?
minus-square@Verito@lemm.eelinkfedilink4•7 months agoBecause 30 and 21 are both divisible by the same number, 3.
All the magic goes when you understand it’s 30+21
I always thought it’s 31+20
Why? 19 is 15+4 but is still prime?
Because 30 and 21 are both divisible by the same number, 3.
Exactly 3(10+7)