How about this infinite product here?

(99/10)*(111/110)*(1111/1110)*(11111/11110)*...

The partial products are:

9.9

9.99

9.999

9.9999

and so on...

The product quite obviously converges to an even number (10), but all of

the numerators are odd and all of the denominators are even. Even and

odd really have no meaning when it comes to infinity and limits. As

this example shows, a series of partial products, all of which have

odd numerator and even denominator, can converge to not only a rational

number, but an even integer.

On 2/15/2013 8:53 AM, Kermit Rose wrote:

> Re: Is the twin prime constant irrational?

>

>

>

> Twin prime constant

> = (3/2)(1/2)(5/4)(3/4)(7/6)(5/6)(11/10)(9/10)...(p/(p-1))((p-2)/(p-1))...

>

>

> I expected that it would have been easily determined whether or not

> the twin prime constant was rational or irrational.

>

> It would not be possible for the twin prime constant to be rational

> because the infinite numerator is odd, and the infinite denominator is

> divisible by

> 2 infinitely many times.

>

> Kermit

>

>

>

>

>

>

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