Cuckold Puzzle - Cumshot count

My GF: Great Day at office... got cum sprayed inside all my holes
Me [humiliated]: How many of them?
My GF [Shying]: I am an Indian woman. I don't tell the specific counts. But, the product of number of cum sprayed in each of my holes is 72 and the total is my birth-date [day only].
Me [Sadly thinking]: I still cant get it..... :(
My GF: Okay Idiot!!! I have the largest number of cum-shots stored in my ass for your dinner..... Come on you loser lie down..

As I started eating cum from her ass.... i got the answer, but was unable to speak as my tongue was deep in her asshole...

Could you tell how many cum-shots were sprayed inside my GF and which holes....