The word(s) "number" appears 33 time(s) in 28 verse(s) in Quran in Mohsin Khan translation.

(21) He (Allah) will say: "What number of years did you stay on earth?"

(22) Do they not travel in the land, and see what was the end of those before them? They were superior to them in strength, and they tilled the earth and populated it in greater numbers than these (pagans) have done: and there came to them their Messengers with clear proofs. Surely, Allah wronged them not, but they used to wrong themselves.

(23) Verily, We give life to the dead, and We record that which they send before (them), and their traces and all things We have recorded with numbers (as a record) in a Clear Book.

(24) Have they not travelled through the earth and seen what was the end of those before them? They were more in number than them and mightier in strength, and in the traces (they have left behind them) in the land; yet all that they used to earn availed them not.

(25) Say (O Muhammad صلى الله عليه وسلم): "It has been revealed to me that a group (from three to ten in number) of jinn listened (to this Qur'an). They said: 'Verily, we have heard a wonderful Recitation (this Qur'an)!

(26) Till, when they see that which they are promised, then they will know who it is that is weaker concerning helpers and less important concerning numbers.

(27) [He (Allah) protects them (the Messengers)], till He sees that they (the Messengers) have conveyed the Messages of their Lord (Allah). And He (Allah) surrounds all that which is with them, and He (Allah) keeps count of all things (i.e. He knows the exact number of everything).

(28) And We have set none but angels as guardians of the Fire. And We have fixed their number (19) only as a trial for the disbelievers, in order that the people of the Scripture (Jews and Christians) may arrive at a certainty [that this Qur'an is the truth as it agrees with their Books regarding the number (19) which is written in the Taurat (Torah) and the Injeel (Gospel)] and that the believers may increase in Faith (as this Qur'an is the truth), and that no doubt may be left for the people of the Scripture and the believers, and that those in whose hearts is a disease (of hypocrisy) and the disbelievers may say: "What Allah intends by this (curious) example ?" Thus Allah leads astray whom He wills and guides whom He wills. And none can know the hosts of your Lord but He. And this (Hell) is nothing else than a (warning) reminder to mankind.