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Jun 4, 2020 at 19:23 history closed Emil Jeřábek
abx
Wojowu
Joe Silverman
Alex M.
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Jun 4, 2020 at 17:01 comment added zomega That's great! Maybe you can also help me with n > 4 here
Jun 4, 2020 at 13:46 review Close votes
Jun 4, 2020 at 19:23
Jun 4, 2020 at 13:16 review First posts
Jun 4, 2020 at 14:29
Jun 4, 2020 at 13:15 comment added Wojowu $2^{(p-1)/3}\equiv 1\pmod p$ iff $2$ is a cubic residue, which happens iff $p$ is of the form $x^2+27y^2$. Look up cubic reciprocity.
Jun 4, 2020 at 13:09 history asked zomega CC BY-SA 4.0