[Python] Python while loop not stopping when element is found in a tuple [closed]

I am trying to search for a number in a tuple using a while loop in Python. The program finds the element , but it does not stop and continues to run until the end of the tuple. Here is my code:

numbers=(2,4,6,8,10,12)

x= int(input("Enter a number to search: "))

i=0

while i < len(numbers):

if numbers == x:

print("Number found at index", i)

i+=1


Even when the number is found , the loop keeps running.

What i want:

1. 
   Stop the loop as soon as the element is found
   
   
2. 
   Also know if there is more pythonic way to do this
   
   Expected output example: If user enters 6
   
   Output: Number found at index 2
   
   How to fix this code and improve it?
   

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