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Count of numbers upto M with GCD equals to K when paired with M | Function to calculate GCD using euler totient function.
Finding the prime factors of limit to calculate it 's  euler totient function.
Calculating the euler totient function of ( mk ).
Function print the count of numbers whose GCD with M equals to K.
GCD of m with any integer cannot be equal to k.
0 and m itself will be the only valid integers.
Finding the number upto which coefficient of k can come.
Driver code"
Solution in Python:
 What is a code to count of numbers upto M with GCD equals to K when paired with M and the other steps required?
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#Here is code to count of numbers upto M with GCD equals to K when paired with M and the other steps required.
 def EulerTotientFunction ( limit ) :
	copy = limit
	primes = [ ]
	for i in range ( 2 , limit + 1 ) :
		if i * i > limit :
			break
		if ( limit % i == 0 ) :
			while ( limit % i == 0 ) :
				limit //= i
			primes . append ( i )
	if ( limit >= 2 ) :
		primes . append ( limit )
	ans = copy
	for it in primes :
		ans = ( ans // it ) * ( it - 1 )
	return ans
def CountGCD ( m , k ) :
	if ( m % k != 0 ) :
		print ( 0 )
		return
	if ( m == k ) :
		print ( 2 )
		return
	limit = m // k
	ans = EulerTotientFunction ( limit )
	print ( ans )
if __name__ == ' _ _ main _ _ ' :
	M = 9
	K = 1
	CountGCD ( M , K )