My dad said it was a symphony..............the eigenvalues............change from here to there........997......the last triple digit prime..........97.......the last double digit prime..........2, 3......primes with 2 digits.......and primes with 3 digits...

509 is the 97th prime..............but since there are 25 primes.......before the 1st prime with 3 digits....................97 - 25 = 72....................509 is the 72nd prime in 3 digits.....................71 under it.......like minus...........and 71 primes above it......................just for 3 digit primes....................like e...........and kinda like the periodic table........iron is supposedly the most stable element......the 26th element.............101......is the 26th prime..........the 1st with 3 digits..................the square root of 13 is 3.60555............full circle..............15.........and the golden ratio..............47 is the 15th prime........the 11th..............2 digit prime...................4 + 7 = 11.............11 is the 1st prime with 2 digits..............47 is also the sum of the 1st 10 digits of e.