until = 20 [n for n in range(2, until) if all(n % m != 0 for m in range(2, n-1))]
n = 20 primes = [] for i in range(2, n + 1): for j in range(2, int(i ** 0.5) + 1): if i%j == 0: break else: primes.append(i) print(primes)
lower = int(input("Enter lower range: ")) upper = int(input("Enter upper range: ")) for num in range(lower,upper + 1): if num > 1: for i in range(2,num): if (num % i) == 0: break else: print(num)