Import Math Def Isprime X N 2 N 3 Return True N 2 N 2 0 Return False N 9 Return True N 3 0 Q36682051 . . . import mathdef is_prime(x):if n == 2 or n == 3:return Trueif n < 2 or n % 2 == 0:return Falseif n < 9:return Trueif n % 3 == 0:return Falser = int(n**0.5)f = 5while f <= r:print ('t',f)if n % f == 0:return Falseif n % (f + 2) == 0:return Falsef +=6return True n = int(input('Enter an integer:n'))print (is_prime(n))
I got a few questions about this code. What's the use for theline of code that says if n < 9 return True?
Lastly, I'm not sure what's going on in this part of the code. The part where n has a power of 0.5 and f = 5 are more confusing. If anyone could help, I'd appreciate it. Thank you!
r = int(n**0.5)f = 5while f <= r:print ('t',f)if n % f == 0:return Falseif n % (f + 2) == 0:return Falsef +=6return True

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