Sjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 1 day agoIt looks so wrongsh.itjust.worksimagemessage-square51fedilinkarrow-up1535arrow-down126
arrow-up1509arrow-down1imageIt looks so wrongsh.itjust.worksSjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 1 day agomessage-square51fedilink
minus-squaresugar_in_your_tea@sh.itjust.workslinkfedilinkarrow-up10·edit-26 hours agoYup, my personal prime check is: Even? Ends in 5? Digits sum to 3? If it fails all three and it’s not an “obvious” prime (<20), then it’s prime enough for me.
minus-squareKnock_Knock_Lemmy_In@lemmy.worldlinkfedilinkarrow-up2·11 hours agoAlso Ends in 0, but that’s covered by 5 really.
minus-squaresugar_in_your_tea@sh.itjust.workslinkfedilinkarrow-up4·5 hours agoIt’s also covered by being even.
Yup, my personal prime check is:
If it fails all three and it’s not an “obvious” prime (<20), then it’s prime enough for me.
Also
Ends in 0,
but that’s covered by 5 really.
It’s also covered by being even.