If f f f maps the set of natural numbers to whole numbers such that f ( x y ) = f ( x ) f ( y ) + f ( x ) + f ( y ) f(xy) = f(x)f(y) + f(x) + f(y) f (...
Question
If
maps the set of natural numbers to whole numbers such that
for all
, and
for every prime number
, then the value of
is