[Tutor] checking if a number is evan or odd

[max baseman]

hello just a quick check in, it's about the same program i was asking  
about before ive let it sit for a few days now and i reached a number  
to high to convert to a decimal by adding 0.0
here's the program:

count=1
numstart=268549802
number=0
high=0
a=0
while 1==1:
     numstart=numstart+1
     number=numstart
     count=1
     while number !=1:
         if number/2 == (number+0.0)/2:
             number=number/2
         else:
             number=(number*3)+1
         count=count+1
     if count > a:
         a=count
         print numstart,":",count


after a few days i got this error:

Traceback (most recent call last):
   File "homework6high.py", line 11, in <module>
     if number/2 == (number+0.0)/2:
OverflowError: long int too large to convert to float

just wondering if theirs a way to check if a larger number is even or  
odd

thanks