A couple of weeks ago all the news was about some new red ochre markings found in a shaft on the interior of the Great Pyramid at Giza (a.k.a. the Pyramid of Khufu), identified using an exploratory robot. That was pretty cool. But if you’re a professional numbers guy (as I am) you’ll be doubly excited to learn that it is probable that those marks are hieratic numerals. If this interpretation is correct, these are almost certainly mason’s marks used to indicate some quantity involved in the construction. Other than the fact that I would like all news outlets to stop calling them hieroglyphs (they aren’t – the hieratic script is a cursive Egyptian script that differs significantly from the hieroglyphs, and the numerals look nothing alike), this is really cool. I do want to urge caution, however: this does not imply that the Great Pyramid was designed along some sort of mystical pattern or using some numerological precepts. It actually doesn’t tell us even that the marks indicate the length of the shaft (as Luca Miatello suggests in the new article) – it could just as easily be 121 bricks in a pile used to make a portion of the pyramid. I am also not 100% convinced of the ‘121’ interpretation – the 100 could be a 200, very easily, or even some other sign altogether, for instance. But the idea that numerical marks using hieratic script would be made by the pyramid-makers is entirely plausible and helps show the role of hieratic script in the Old Kingdom. Although it’s hardly going to revolutionize our understanding of Egyptian mathematics, it may well help outline the functional contexts of the use of numerals in Old Kingdom Egypt.