human
Find the minimum number to be added to N to make it a prime number | Function to check if a given number is a prime or not.
Base cases.
This is checked so that we can skip middle five numbers in below loop.
For all the remaining numbers , check if any number is a factor if the number or not.
If none of the above numbers are the factors for the number , then the given number is prime.
Function to return the smallest number to be added to make a number prime.
Base case.
Loop continuously until isPrime returns true for a number greater than n.
If the number is not a prime , then increment the number by 1 and the counter which stores the number to be added.
Driver code"
How can the above be solved in Python?
 Can you provide a code to find the minimum number to be added to N to make it a prime number and the other steps required?
assistant
#Here is code to find the minimum number to be added to N to make it a prime number and the other steps required.
 def isPrime ( n ) :
	if ( n <= 1 ) :
		return False
	if ( n <= 3 ) :
		return True
	if ( n % 2 == 0 or n % 3 == 0 ) :
		return False
	i = 5
	while ( i * i <= n ) :
		if ( n % i == 0 or n % ( i + 2 ) == 0 ) :
			return False
		i += 6
	return True
def findSmallest ( N ) :
	if ( N == 0 ) :
		return 2
	if ( N == 1 ) :
		return 1
	prime , counter = N , 0
	found = False
	while ( not found ) :
		if ( isPrime ( prime ) ) :
			found = True
		else :
			prime += 1
			counter += 1
	return counter
if __name__ == " _ _ main _ _ " :
	N = 10
	print ( findSmallest ( N ) )