Final answer:
The exact capacity of the rocket's fuel hold in gallons is not provided in the given information.
Step-by-step explanation:
The Saturn V rocket, built by NASA, had three stages.
The first stage, which carried most of the fuel, had a capacity of launching about 3.5 million kg of mass, with approximately 2.3 million kg being fuel.
However, the question specifically asks about the fuel hold of the rocket.
Unfortunately, the information provided does not specify the capacity of the fuel hold in gallons.
Therefore, we cannot determine the exact number of gallons that the rocket's fuel hold would have.