ickplant@lemmy.world to Lemmy Shitpost@lemmy.world · 2 年前Paniki.postimg.ccimagemessage-square147fedilinkarrow-up11.31Karrow-down151
arrow-up11.26Karrow-down1imagePaniki.postimg.ccickplant@lemmy.world to Lemmy Shitpost@lemmy.world · 2 年前message-square147fedilink
minus-squareoctoperson@sh.itjust.workslinkfedilinkarrow-up4·2 年前11 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.