Tarisa ndima iri pasi apa uye wopindura mubvunzo unotevera mumutauro mumwe chetewo: 1729 ndiyo nhamba yechitatu yaCarmichael, nhamba yekutanga yaChernick <unk> Carmichael (sequence A033502 muOEIS), uye nhamba yekutanga yaEuler pseudoprime.
nhamba ye sphenic