Sjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 1 month agoIt looks so wrongsh.itjust.worksimagemessage-square37fedilinkarrow-up1375arrow-down113
arrow-up1362arrow-down1imageIt looks so wrongsh.itjust.worksSjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 1 month agomessage-square37fedilink
minus-squaresugar_in_your_tea@sh.itjust.workslinkfedilinkarrow-up11·edit-21 month 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.
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.