The word(s) "prayer" appears 54 time(s) in 49 verse(s) in Quran in Muhammad Pickthal translation.

(31) Then We heard his prayer and removed that adversity from which he suffered, and We gave him his household (that he had lost) and the like thereof along with them, a mercy from Our store, and a remembrance for the worshippers;

(32) Then we heard his prayer and saved him from the anguish. Thus we save believers.

(33) Then We heard his prayer, and bestowed upon him John, and adjusted his wife (to bear a child) for him. Lo! they used to vie one with the other in good deeds, and they cried unto Us in longing and in fear, and were submissive unto Us.

(34) Who are humble in their prayers,

(35) And who pay heed to their prayers.

(36) Men whom neither merchandise nor sale beguileth from remembrance of Allah and constancy in prayer and paying to the poor their due; who fear a day when hearts and eyeballs will be overturned;

(37) O ye who believe! Let your slaves, and those of you who have not come to puberty, ask leave of you at three times (before they come into your presence): Before the prayer of dawn, and when ye lay aside your raiment for the heat of noon, and after the prayer of night. Three times of privacy for you. It is no sin for them or for you at other times, when some of you go round attendant upon others (if they come into your presence without leave). Thus Allah maketh clear the revelations for you. Allah is Knower, Wise.

(38) Say (O Muhammad, unto the disbelievers): My Lord would not concern Himself with you but for your prayer. But now ye have denied (the Truth), therefor there will be judgment.

(39) And stay in your houses. Bedizen not yourselves with the bedizenment of the Time of Ignorance. Be regular in prayer, and pay the poor-due, and obey Allah and His messenger. Allah's wish is but to remove uncleanness far from you, O Folk of the Household, and cleanse you with a thorough cleansing.

(40) If ye pray unto them they hear not your prayer, and if they heard they could not grant it you. On the Day of Resurrection they will disown association with you. None can inform you like Him Who is Aware.