observation - How many stars are there in a Globular Cluster of 10^5 solar masses?

I was wondering whether there is an easy way to approximate the number of stars in a Globular Cluster (GC) with 10^5 solar masses.

Can one, for instance just assume the GC is made of sun-like stars and therefore has 10^5 stars?
Or is this too simple?

Thank you for your answers!