Extended Strong's Greek Lexicon (Abbott-Smith based)
number
Usage: ἀριθμός, -οῦ, ὁ [in LXX chiefly for מִסְפָּר ;] number, a number: Luk.22:3, Jhn.6:10, Act.4:4 5:36 6:7 11:21 16:5, Rom.9:27, Rev.5:11 7:4 9:16 13:17-18 15:2 20:8 (for exx. of mystical use in π., see MM, see word).† (AS)