<prompt> Rangarira ndima iri pasi apa uye wozopindura mubvunzo unotevera mumutauro mumwe chete sezvinoita ndima: Passage: The dihedral group yakakurukurwa pamusoro apa iboka rakaperera rehurongwa hwe8. Hurongwa hwe r1 i4, sezvakangoita hurongwa hweboka R rinogadzira ona pamusoro apa. Kurongeka kwezvinhu zvinoratidzira fv nezvimwewo i 2. Zvese zvirevo zvinogovana 8, sezvakafanotaurwa neLagranges theorem. Mapoka Fp × pamusoro ane hurongwa p - 1. Mubvunzo: Nhamba ipi inogovanisa zvese zvirevo zvinoenderana ne theorem?  <response>: Nhamba 8 