threelonmusketeers to Math [email protected]English • 4 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 • 4 months agomessage-square21fedilink
minus-square@TunaCowboylinkEnglish32•4 months agoNaw, 5 + 1 = 6, 6 is divisible by 3, so 51 is divisible by 3.
minus-square@xpinchxlinkEnglish4•4 months agoI shared this at work recently and nobody cared. 3 6 and 9 are all kinda special.
minus-square@MojavelinkEnglish-3•4 months agoSure, and 91 is divisible by 7 if you know your 7 times tables.
Naw, 5 + 1 = 6, 6 is divisible by 3, so 51 is divisible by 3.
I shared this at work recently and nobody cared. 3 6 and 9 are all kinda special.
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Sure, and 91 is divisible by 7 if you know your 7 times tables.