threelonmusketeers to Math [email protected]English • 17 days agoJohn Conway proves that 91 is the smallest number which looks prime but isn'twww.youtube.comexternal-linkmessage-square21fedilinkarrow-up1107arrow-down13
arrow-up1104arrow-down1external-linkJohn Conway proves that 91 is the smallest number which looks prime but isn'twww.youtube.comthreelonmusketeers to Math [email protected]English • 17 days agomessage-square21fedilink
minus-square@MojavelinkEnglish-3•17 days agoSure, and 91 is divisible by 7 if you know your 7 times tables.
Sure, and 91 is divisible by 7 if you know your 7 times tables.