how to count prime numbers till n number in python code example
Example 1: 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))]
Example 2: python program to find n prime numbers
num = 10
for i in range(2,num+1):
for j in range(2,i):
if(i%j == 0):
break
else:
print(i)