Lets say we have 3 parties and each one of them has a different secret number. Every party wants to learn the product of all the 3 numbers without learning about the others inputs.

With the BGW protocol: Can we do this with 3 parties, or do we need 5 parties to do this? I am confused because BGW states that we need 2t+1 parties to reconstruct the solution, which would be 5.