How many are the تكبيرات (Allahu Akbar) of prayer, and is prayer in the mosque obligatory along with performing it at its appointed times at home?

The worshipper says 94 'takbirat' (Allahu Akbar) in the five daily prayers: 22 in the four-rak'ah prayer, 17 in the Maghrib prayer, and 11 in the Fajr prayer. Regarding the ruling on congregational prayer at home, the majority of scholars consider it a Sunnah (recommended), while the Hanbalis consider it obligatory, and the one who abandons it is sinful.