6.5.18 The number of pseudo-primes less than or equal to n: nprimes
The nprimes command counts the number of pseudo-primes.
-
nprimes takes one argument:
n, a non-negative integer.
- nprimes(n) returns the number of pseudo-primes (or
primes) less than or equal to n.
Examples.
-
Input:
nprimes(5)
Output:
- Input:
nprimes(10)
Output: