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raw input - Python: Problem with raw_input reading a number

unfortunately raw_input is not doing what I need it to do. What I am trying to do is get totPrimes = whatever I type in at the prompt. If i replace while count < totPrimes with while count < 50 this script works. If I type 50 into the prompt, this script doesnt work, I'm afraid raw_input isn't the function im looking to use? Here is a snippet of my code:

testNum = 3
div = 2
count = 1
totPrimes = raw_input("Please enter the primes: ")

while count < totPrimes :
    while div <= testNum :
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Do

totPrimes = int(totPrimes)
while count < totPrimes:
    # code

raw_input gives you a string you must convert to an integer or float before making any numeric comparison.


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