What is the hexadecimal number following F?

None.
In hexadecimal notation, F is the last number. (1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F).
Because F in binary 1111, then in decimal it will be 1111 = 8 + 4 + 3 + 1 = 15. And in the hexadecimal system there cannot be a number greater than 15. Therefore, F is the last number.



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