print prime number from 2 to given range in python code example
Example: python calculate prime numbers until numer
until = 20
[n for n in range(2, until) if all(n % m != 0 for m in range(2, n-1))]
until = 20
[n for n in range(2, until) if all(n % m != 0 for m in range(2, n-1))]