Last edited by 青青子衿 2023-7-20 20:26ResourceFunction["EisensteinFactorInteger"][21] // ExpToTrig
ResourceFunction["EisensteinFactorInteger"][57]
\[57=\left(2+e^{\frac{2 i \pi }{3}}\right) \left(2+e^{-\frac{2 i \pi }{3}}\right) \left(3-2 e^{\frac{2 i \pi }{3}}\right) \left(5+2 e^{\frac{2 i \pi }{3}}\right)\]
