Function: idealprimedec
Section: number_fields
C-Name: primedec
Prototype: GG
Help: idealprimedec(nf,p): prime ideal decomposition of the prime number p
 in the number field nf as a vector of 5 component vectors [p,a,e,f,b]
 representing the prime ideals pZ_K+a. Z_K, e,f as usual, a as vector of
 components on the integral basis, b Lenstra's constant

