List Primes
#!/usr/bin/env python3 # Copyright 2009-2017 BHG http://bw.org/ def isprime(n): if n <= 1: return False for x in range(2, n): if n % x == 0: return False else: return True def listprimes(): for n in range(100): if isprime(n): print(n, end=' ', flush=True) n = 5 if isprime(n): print(f'{n} is prime') else: print(f'{n} not prime') listprimes()