Sjmarf to People [email protected] • 2 months agoIt looks so wrongsh.itjust.worksimagemessage-square72fedilinkarrow-up1635arrow-down129
arrow-up1606arrow-down1imageIt looks so wrongsh.itjust.worksSjmarf to People [email protected] • 2 months agomessage-square72fedilink
minus-square@[email protected]linkfedilink15•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.
Also
Ends in 0,
but that’s covered by 5 really.
It’s also covered by being even.