What is the approximate mass of the third major player, the Triangulum Galaxy (M33)?

Answer

Around $5 imes 10^{10} M_ ext{odot}$

The Triangulum Galaxy (M33) is considerably less massive than its two larger siblings, possessing a mass estimated around $5 imes 10^{10} M_ ext{odot}$.

What is the approximate mass of the third major player, the Triangulum Galaxy (M33)?
galaxyastronomycenterLocal Group