\\ Pari/GP code for working with number field 24.4.270761008401829353605241639483649123576469719409942626953125.2. \\ Some of these functions may take a long time to execute (this depends on the field). \\ Define the number field: K = bnfinit(y^24 - 4*y^23 + 6*y^22 - 4*y^21 - 1304*y^20 + 2465*y^19 + 2465*y^18 - 1885*y^17 - 599575*y^16 + 5496080*y^15 + 20488210*y^14 - 25107040*y^13 - 597431900*y^12 - 567629035*y^11 + 3603058165*y^10 + 9448143015*y^9 - 17099510555*y^8 + 16736471880*y^7 + 402014550880*y^6 + 156208942105*y^5 - 3470676872911*y^4 - 7274032113936*y^3 + 8069786480454*y^2 + 22227043889439*y - 6585670043891, 1) \\ Defining polynomial: K.pol \\ Degree over Q: poldegree(K.pol) \\ Signature: K.sign \\ Discriminant: K.disc \\ Ramified primes: factor(abs(K.disc))[,1]~ \\ Integral basis: K.zk \\ Class group: K.clgp \\ Narrow class group: bnfnarrow(K) \\ Unit rank: K.fu \\ Generator for roots of unity: K.tu[2] \\ Fundamental units: K.fu \\ Regulator: K.reg \\ Analytic class number formula: \\ self-contained Pari/GP code snippet to compute the analytic class number formula K = bnfinit(x^24 - 4*x^23 + 6*x^22 - 4*x^21 - 1304*x^20 + 2465*x^19 + 2465*x^18 - 1885*x^17 - 599575*x^16 + 5496080*x^15 + 20488210*x^14 - 25107040*x^13 - 597431900*x^12 - 567629035*x^11 + 3603058165*x^10 + 9448143015*x^9 - 17099510555*x^8 + 16736471880*x^7 + 402014550880*x^6 + 156208942105*x^5 - 3470676872911*x^4 - 7274032113936*x^3 + 8069786480454*x^2 + 22227043889439*x - 6585670043891, 1); [polcoeff (lfunrootres (lfuncreate (K))[1][1][2], -1), 2^K.r1 * (2*Pi)^K.r2 * K.reg * K.no / (K.tu[1] * sqrt (abs (K.disc)))] \\ Intermediate fields: L = nfsubfields(K); L[2..length(L)] \\ Galois group: polgalois(K.pol) \\ Frobenius cycle types: \\ to obtain a list of [e_i,f_i] for the factorization of the ideal pO_K for p=7 in Pari: p = 7; pfac = idealprimedec(K, p); vector(length(pfac), j, [pfac[j][3], pfac[j][4]])