163 and Ramanujan Constant - Numberphile
Why does Alex Clark, from the University of Leicester, have a strange fascination with 163? More links & stuff in full description below ↓↓↓ Some slightly more advanced stuff in this...
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ALEX CLARK: And what's interesting about this problem is that it was actually solved by what might be called an amateur mathematician, someone that wasn't officially a mathematician. So I first encountered 163 when studying a little bit of basic number theory. And it came up in the most mysterious way that fascinated me because it's the last number in a short list of numbers. Even though it seems very innocuous, it has some very mysterious properties. So you may have heard about factoring numbers. You may not remember exactly what that means. So let's just review that. If you start out with a whole number, say 12, you can write it as a product of numbers in many different ways. So you could think of 12 as being 6 times 2, or you cou...
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ALEX CLARK: And what's interesting about this problem is that it was actually solved by what might be called an amateur mathematician, someone that wasn't officially a mathematician. So I first encountered 163 when studying a little bit of basic number theory. And it came up in the most mysterious way that fascinated me because it's the last number in a short list of numbers. Even though it seems very innocuous, it has some very mysterious properties. So you may have heard about factoring numbers. You may not remember exactly what that means. So let's just review that. If you start out with a whole number, say 12, you can write it as a product of numbers in many different ways. So you could think of 12 as being 6 times 2, or you cou...
