As far as obligatory prayer numbers are concerned, they are five in number as stated below:

- Daily prayers: 
A) Dawn (Morning prayer). It contains two rak'as only.
B) Noon(Midday) prayer. It contains four rak'as.
C) Afternoon prayer. It contains four rak'as.
D) Evening prayer. It contains three rak'as.
E) Night prayer. It contains four rak'as.

- At-Tawaf (going around the Kaaba) prayer which is obligatory during pilgrimage and we will touch upon it later on. 
3-Al-Ayat (verses) prayer which is usually performed when in fear of natural catastrophes.
4-Prayer over the dead… usually performed on behalf of a dead one on his corpse with a reward in return.
5-A prayer for giving a vow or for removing a suspicion which man usually binds himself with or for hire., 

There are also - the so- called: (Approved prayers) which are known as: (An-Nawafil) usually performed voluntarily to win a reward in return for performing them at night. The most important ones are known as:  The ordinary daily prayers. They are eight rak'at to be performed at pre-noon prayer and the like of it at pre – afternoon prayer and a prayer of four rak'at at post supper prayer, and eight rak'at prayer at night prayer, two rak'at for Ash-Shaf and one single rak'a after Ash-Shaf' and two rak'a for pre-dawn prayer.