How many times are the Prophets Jesus (pbuh) and Muhammad (pbuh) mentioned in the Quran?

Prophet Jesus Christ (PBUH) is mentioned 25 times in the Quran. He is known as Isa in the Quran.

Prophet Muhammad (PBUH) is mentioned 5 times in the Quran, 4 times by the name Muhammad and once by the name of Ahmad. 

This is an astonishing fact. The holy book that was revealed on Prophet Muhammad (pbuh) mentions his name lesser number of times than that of other prophets. It proves the validity of the Quran and that it was not the handiwork of Prophet Muhammad (pbuh). 

The question to think about are the consequences of this. If one wants to draw some kind of conclusion of the relative importance of Prophet Muhammad (pbuh) as a consequence, then the name of Prophet Moses (pbuh) known as Moosa in the Quran, is mentioned 136 times. Does that mean Prophet Moses (pbuh) is 5.44 times as important as Prophet Jesus (pbuh) and 34 times as important as Prophet Muhammad (pbuh)? Of course not!  

Simple number counting does not explain everything. It may be fun to know numbers but logically and theologically they don't hold any importance.