Papal Conclave: By the numbers By Richard Allen Greene, CNN March 12, 2013 -- Updated 0647 GMT (1447 HKT) Rome (CNN) -- The conclave in numbers Number of cardinal electors in the conclave to elect the new pope Number of cardinal electors appointed by Benedict XVI Number of cardinal electors appointed by John Paul II Number of votes to be elected pope (2/3 of 115, rounded up) Number of countries cardinal electors come from Number of cardinal electors from Italy, which has the largest contingent Number of cardinal electors from the United States, the second-largest Number of countries that have one elector each Age of the youngest cardinal elector, Baselios Cleemis Thottunkal of India Age of the oldest cardinal elector, Walter Kasper of Germany (Kasper turned 80 on April 5 but is allowed to be an elector because he was under 80 when the papal throne became vacant) Age of Pope John Paul II at election in 1978 26.5 years Length of John Paul II's reign Age of Pope Benedict XVI at election in 2005 Nearly 8 years Length of Benedict XVI's reign Journalist Noah Gray contributed to this report. March 12, 2013 -- Updated 0354 GMT (1154 HKT)