threelonmusketeers to Math [email protected]English • 3 months agoJohn Conway proves that 91 is the smallest number which looks prime but isn'twww.youtube.comexternal-linkmessage-square21fedilinkarrow-up1112arrow-down13
arrow-up1109arrow-down1external-linkJohn Conway proves that 91 is the smallest number which looks prime but isn'twww.youtube.comthreelonmusketeers to Math [email protected]English • 3 months agomessage-square21fedilink
It’s funny, but actually a good proof