Crossword Genius

First prime number (3)

Ross

I believe the answer is:

two

'first prime number' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for two that I've seen before include "II" , "Couple, brace" , "Number of Gentlemen of Verona" , "A low number" , "''... turtle doves''" .)

I've seen this clue in the King Feature Syndicate, the Universal, The Wall Street Journal and the Family Time.
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