Natalie Wolchover is a staff writer at Quanta Magazine covering the physical sciences. Previously, she wrote for LiveScience, Popular Science, Seed, Make magazine and other publications. She has a bachelor’s in physics from Tufts University, studied graduate-level physics at the University of California, Berkeley, and co-authored several academic papers in nonlinear optics.

### N Is a Number: A Portrait of Paul Erdös

Highlights from a documentary film about Paul Erdös, the extraordinarily prolific Hungarian-Jewish mathematician best known for his contributions to number theory, probability theory and combinatorics.