## *Insert title here related to prime numbers*

March 23, 2015 by Rebecca G.

And in great timing, at work today we were talking about how to calculate option values correctly, and what it means for something to have an option. An example came up about prime number theory. I’m not sure what this means, since I can only be bothered to do a basic Google which tells me nothing, but from what I gather it can be one of two things:

1) There are an infinite number of prime numbers. The proof for this goes something like, if there were a finite number of primes, and the last one was *n*, then you could multiply all of the prime numbers up to *n* by each other, add one, and have created a new number that is indivisible by any of the prime numbers you just used.

2) Large numbers are really hard to factor, even for computers, because there is no way to do it elegantly.

Nobody really thought there would be any use for prime numbers, except basically people who like to do math for fun. Math hobbyists. The eventual value of primes was uncovered after it was discovered that they could be incredibly useful for encryption, and voila. The option value of playing with numbers.

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