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)n=int(input("Enter the number till you want to check: "))
primes = []
for i in range (2, n+1):
for j in range(2, i):
if i%j == 0:
break
else:
primes.append(i)
print(primes)lowernum = int(input(“Enter your lower number”))
uppernum = int(input(“Enter your upper number”))
for num in range(lowernum,uppernum +1):
if num> 1:
for num in range(2,num):
if (num % 1) == 0:
break
else:
print(num)