#### Exercise 63

Write a program in Python language that asks the user to enter an integer n and display it if this number is prime or not.

#### Solution

`# Enter value of the integer n`

n = int(input("Enter value of the integer n : "))

# we must use an auxiliary variable j that will count the number of divisors of n

# initialize value of j

j = 0

for i in range(1, n+1):

# we test if i is a divisor of n, then we increment j

if(n%i == 0):

j = j + 1

# The integer n is prim number if and only if j is equal to 2

if( j == 2):

print("The integer ", n , " is a prim number")

else:

print("The integer ", n , " is not a prim number")

**Younes Derfoufi**

my-courses.net

my-courses.net