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Humans

The Biggest Number in the World review: A brilliant guide to googology

The largest numbers are so huge you need special notation to write them down. David Darling and Agnijo Banerjee's new book on big numbers will take you to the edge of mathematics

By Timothy Revell

15 June 2022

Portobello street, variety of wooden numbers for sale.

Reaching far along the number line requires mathematical booster technology

Grant Faint/Getty Images

The Biggest Number in the World

David Darling and Agnijo Banerjee

Oneworld

DR EVIL (aka Adam Elga) walked up to a blackboard in front of a packed auditorium at the Massachusetts Institute of Technology and wrote a single 1. It was a slow but tactical start to the 2007 Big Number Duel, an event described on its posters as: “Two competitors. One chalkboard. Largest integer wins.”

The Mexican Multiplier (aka Agustin Rayo) wasn’t happy with such a slow start, so he filled in the blackboard with 1s. Dr Evil countered by turning…

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