Andrew Richard Booker (born 1976)[1] is a British mathematician who is currently Professor of Pure Mathematics at the University of Bristol.

[2] He is an analytic number theorist known for his work on L-functions of automorphic forms[3] and his contributions to the sums of three cubes problem.

[6] He completed his doctoral degree at Princeton University in 2003, under the supervision of Peter Sarnak.

[7] In the spring of 2019 Booker gained international attention by showing that 33 can be expressed as the sum of three cubes.

Later that year, in joint work with Andrew Sutherland of MIT, he settled the case of 42,[11][12] as well as answering a 65-year-old question of Mordell by finding a third representation for 3 as the sum of three cubes.