Hello people, here I am writing a Python programme after a very long time. This programme could be useful for cracking interviews or could be useful for school / college students who wish to learn the basic of Python programming.
This programme basically gets an input value from the user and prints whether the input number is either a Prime Number or Not a Prime Number
I hope you know what is a Prime Number already. If you don’t know here is a simple explanation:
A prime number should be exactly #divisible by 2 times only (itself and 1)
Find Prime number – Python program :
res = False
c = 0
i = 1
#loop till i equals to num
while i <= num:
#% modules will give the reminder value,
#so if the reminder is 0 then it is divisible
if (num % i == 0):
#increment the value of c
c = c + 1
i = i + 1
#if the value of c is 2 then it is a prime number
#because a prime number should be exactly
#divisible by 2 times only (itself and 1)
if c == 2:
res = True
#get a input value
print "Enter a Number"
num = int(input())
#if find_prime() returns True then it's a Prime
print "It's a Prime Number!"
print "Not a Prime Number!"
Read the comments in the above program to understand. Just copy paste and execute the above snippet to get the output.