Answer:
4,691,902
Explanation:
There are 5280 ft per mile, and 12 inches per foot. There are 178.7 inches per Prius. The number needed is ...
(13233 mi)(5280 ft/mi)(12 in/ft)/(178.7 in/Prius)
= (13233×5280×12/178.7) Prius
= 4,691,901.95 Prius
With a little squeezing, you could gain the extra 7.4 inches necessary to round this number to the next higher integer value:
4,691,902 Prius cars would be needed to circle Mars at the equator