Department of Mathematics

Van Vleck Hall, 480 Lincoln Drive, Madison, WI

Daniel Erman Explains The Josephus Problem on Numberphile

Daniel Erman did a guest video with the youtube series Numberphile about the Josephus problem.  This was one of the first problems he encountered in high school where he didn't know how to approach a complex problem with a wide variability of inputs and solutions.   He talks about an early mentor who encouraged him to spend time experimenting with the inputs and solutions to see if he could find a pattern.  He explains the process to web viewers in a simple and accessible way, much like his early mentor did.   

Check out his video here:

Daniel Erman is also the faculty advisor for the UW Math Circle (, which is an outreach group dedicated to helping younger students interested in math learn more about the many exciting things you can discover by experimenting with numbers.


UW-Madison Department of Mathematics
Van Vleck Hall
480 Lincoln Drive
Madison, Wi  53706

(608) 263-3054

Contact Us

Got a question about
accessibility, content
or structure of this website?