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BUILT-IN MATHEMATICA SYMBOL
PrimeNu
PrimeNu[n]
gives the number of distinct primes 
in n.
Details and Options
- Integer mathematical function, suitable for both symbolic and numerical manipulation.
- For a number
with 
a unit and 
primes, PrimeNu[n] returns m. - PrimeNu[n, GaussianIntegers->True] gives the number of distinct Gaussian primes in n.
- PrimeNu also works for rational numbers.
- PrimeNu is an additive number theoretic function.
New in 7
