What is 777 in hexadecimal?

Answer 1

Performing integer division, in decimal, we have:

777/16 = 48, remainder 9.

48/16 = 3, remainder 0.

3/16 = 0, remainder 3.

Collecting the three remainders in reverse order, we have,

777d = 309x.

This says that 777 = 3(16)2 + 0(16) + 9.