checking the factors are of 4 t + 3 form or not
if ( ( n % i == 0 ) and ( ( i - 3 ) % 4 ) == 0 ) : NEW_LINE INDENT q = int ( n / i ) NEW_LINE return ( q != i and prime [ q ] and ( q - 3 ) % 4 == 0 ) NEW_LINE DEDENT return False NEW_LINE