Frac 2 sqrt 5 7 July 8, 2019 16 32 64 128 Frac 2 + sqrt 5 7 Frac 5 2 sqrt 3 7 4 sqrt 3 Frac sqrt 2 2 Frac sqrt 2 sqrt 7 Frac sqrt 2 5 Frac 2 sqrt 7 72