Python Program

Python Program to Find the Number is Prime or Not

Prime Number or Not :

Python program to check the number is prime or not. If the number is divisible by 1 or itself then it is prime number else it is not a prime number.

Program:

a=[21,45,32,23,43,55]

for j in range(0,6):

    k=0

    for i in range(2,a[j]//2+1):

        if(a[j]%i==0):

            k=k+1

    if(k==0):

        print(a[j]," is prime")

    else:

        print(a[j]," isn't prime")

Output:

21  isn't prime

45  isn't prime

32  isn't prime

23  is prime

43  is prime

55  isn't prime