threelonmusketeers to Math [email protected]English • 22 hours agoJohn Conway proves that 91 is the smallest number which looks prime but isn'twww.youtube.comexternal-linkmessage-square19fedilinkarrow-up194arrow-down13
arrow-up191arrow-down1external-linkJohn Conway proves that 91 is the smallest number which looks prime but isn'twww.youtube.comthreelonmusketeers to Math [email protected]English • 22 hours agomessage-square19fedilink
minus-square@[email protected]linkfedilinkEnglish3•11 hours agoSurely it’s 1? Looks prime, and some people will even argue that it is!
Surely it’s 1? Looks prime, and some people will even argue that it is!
Its only factors are 1 and itself after all