Upon further observation it turns out that I have to factor more or less every page number I come across. Which of course is easy with numbers divisible by 5 and even numbers, as well as numbers divisible by 3. As you go up in numbers, it gets a little more labor intensive to determine which ones are prime numbers.
247 for example. A prime number, if I'm not mistaken.
A few years back this enquiry lead me to the question: what % of numbers are prime numbers? Below 100 it looks like maybe 20%. 1,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,79,83,89 etc. The answer is surprising. Roughly 0% of numbers are prime because as they get bigger almost all of them are divisible by something other than themselves. One could probably create an interesting proof of this. Someone other than me could, that is.
I gotta get ready for dinner.
In Ann Arbor now, for the first time ever. Mary hasn't been back here for a long time either. More later.
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