Sjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 2 days agoIt looks so wrongsh.itjust.worksimagemessage-square72fedilinkarrow-up1608arrow-down130
arrow-up1578arrow-down1imageIt looks so wrongsh.itjust.worksSjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 2 days agomessage-square72fedilink
minus-squaresugar_in_your_tea@sh.itjust.workslinkfedilinkarrow-up14·edit-224 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-up2·1 day agoAlso Ends in 0, but that’s covered by 5 really.
minus-squaresugar_in_your_tea@sh.itjust.workslinkfedilinkarrow-up6·23 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.