ickplant@lemmy.world to Lemmy Shitpost@lemmy.world · 2 years agoPaniki.postimg.ccimagemessage-square133fedilinkarrow-up11.09Karrow-down139
arrow-up11.06Karrow-down1imagePaniki.postimg.ccickplant@lemmy.world to Lemmy Shitpost@lemmy.world · 2 years agomessage-square133fedilink
minus-squareoctoperson@sh.itjust.workslinkfedilinkarrow-up2·2 years ago11 is alternating sum So, first digit minus second plus third minus fourth… And then check if that is divisible by 11.
11 is alternating sum
So, first digit minus second plus third minus fourth…
And then check if that is divisible by 11.