@servedsoulx: Cutest Cosplayer on earth is dancing! | #zeroday #zeroday2003 #tcc #larp Graham’s number is an enormous number that represents the upper bound for the solution to a particular problem in Ramsey theory. It is an extremely large power expressed using Knuth’s up-arrow notation. It is named after Ronald Graham. It became known to the general public after Martin Gardner described it in his Mathematical Games column in Scientific American in November 1977, where he wrote: “In an unpublished proof, Graham has recently established a bound so large that it holds the record as the largest number ever used in a serious mathematical proof.” In 1980, the Guinness Book of Records repeated Gardner’s claims, further increasing public interest in this number. Graham’s number is unimaginably larger than other well-known large numbers such as a googol, googolplex, and even larger than Skewes’ number and Moser’s number. The entire observable universe is far too small to contain the ordinary decimal notation of Graham’s number (assuming that writing each digit requires at least one Planck volume). Even power towers of the form.