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�N�getprime�are_relatively_prime�p�q�returncCs"|dkr|||}}|dks|S)zPReturns the greatest common divisor of p and q

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    different p, q bitsizes are:
      * p, q bitsize: 512; rounds: 7
      * p, q bitsize: 1024; rounds: 4
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    :param n: Integer to be tested for primality.
    :type n: int
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    r)rr�read_random_odd_intr#)r$�integerrrrr�s�r�bcCst||�}|dkS)z�Returns True if a and b are relatively prime, and False if they
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