MILAN, Italy — Prosecutors yesterday demanded a sentence of six years in jail and a lifetime ban from public office for former Italian Prime Minister Silvio Berlusconi in his sex-for-hire trial.

Berlusconi, 76, is accused of paying for sex with an underage Moroccan teen at a lavish party he hosted while he was premier, and then trying to cover it up.

Prosecutor Ilda Boccassini told the court during closing arguments that the young woman, Karima el-Mahroug, known as Ruby, lied when she denied having had sex with Berlusconi.

Boccassini said “there is no doubt that Ruby had sex with” Berlusconi and got more than $5.8 million from him.