Three. Note connection with four, Exodus 25:34, making seven. See App-10.
Related Commentaries of Exodus 25:33
Exodus 25:33
33 Three bowls made like unto almonds, with a knop and a flower in one branch; and three bowls made like almonds in the other branch, with a knop and a flower: so in the six branches that come out of the candlestick.