Largest Prime Number Copyright © 2003 by Paul Niquette.  All rights reserved. f you took the hint in the puzzle and read tridecabillion, you learned how to perform modulo arithmetic on the number of digits to ascertain the number of digits you write before the first comma.  You start by dividing... 6,320,430 / 3 = 2,106,810 ...and get a remainder of zero.  That would seem to mean that the Largest Prime Number has no digits before the first comma, but as a sophisticated solver, you would simply erase the first comma.    Meanwhile, you now observe that the Largest Prime Number has a total of 2,106,809 commas in it. You also learned that to give a number its proper name, you need to take one less than the number of three-digit clusters marked off by commas and assign a Latin-like designation for the consequent number ending in "illion."  For example,... 999,111,222,333,444 ...has four clusters, less one, for the name 999 trillion, and... 999,111,222,333,444,555,666,777 ...has seven clusters, less one, for the name 999 sextillion.  For a hundred digits -- one googol -- you learned that the number... 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,-  000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000.  ...has 33 clusters, less one, for the name 10 tridecabillion. So, then, how do you create a Latin-like name to represent 2,106,809 clusters?   Simple... bimegacentosexkiloctocentononillion

Solvers with more pronouncable solutions are invited to submit them here.

 For more observations about primes, see  Prime Number Numbers.