Parallel
Revelation 13:18
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
Ὧδε ἡ σοφία ἐστίν. Ὁ ἔχων νοῦν ψηφισάτω τὸν ἀριθμὸν τοῦ θηρίου· ἀριθμὸς γὰρ ἀνθρώπου ἐστίν, καὶ ὁ ἀριθμὸς αὐτοῦ ἐστὶν ἑξακόσια ἑξήκοντα ἕξ.
Here is a call for wisdom: Let the one who has insight calculate the number of the beast, for it is the number of a man, and that number is 666.