Sjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 12 days agoIt looks so wrongsh.itjust.worksexternal-linkmessage-square63fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1external-linkIt looks so wrongsh.itjust.worksSjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 12 days agomessage-square63fedilink
minus-squaresugar_in_your_tea@sh.itjust.workslinkfedilinkarrow-up0·12 days agoYup, my personal prime check is: Even? Ends in 5? Digits sun 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-up0·11 days agoAlso Ends in 0, but that’s covered by 5 really.
minus-squaresugar_in_your_tea@sh.itjust.workslinkfedilinkarrow-up0·11 days 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.