def if_prime(n):
if n in range(0, 4):
return True
for i in range(2, n//2+1):
if n%i==0:
return False
return True
while True:
n = -1
while n not in range(0, 1001):
n = int(input("Input number between 0 and 1000"))
print(if_prime(n))
a = input("Continue??? 1 - No, Eny Key - Yes")
try:
if int(a)==1:
break
except:
ValueError
Объяснение: