# bayes factor

#### dwen

##### New Member

I was think if both proir are ~ Ga(b, t), then would p1/p2 = 1 and B_12 simply f_1 / f_2? But then it is clearly wrong. What should p1/p2 be?

#### Dragan

##### Super Moderator

I was think if both proir are ~ Ga(b, t), then would p1/p2 = 1 and B_12 simply f_1 / f_2? But then it is clearly wrong. What should p1/p2 be?
Hint: First, push n to infinity, this will simplify matters....and then work your way back.

#### dwen

##### New Member
i dun understand the prior part
coz i think prior 1 and 2 cancel out and no t leave ..