‘Groups’ Underpin Modern Math. Here’s How They Work
Figuring out what subgroups a group contains is one way to understand its structure. For example, the subgroups of Z6 are {0}, {0, 2, 4} and {0, 3}—the trivial subgroup, …
numbers
‘Gem’ of a Proof Breaks 80-Year-Old Record, Offers New Insights Into Prime Numbers
The original version of this story appeared in Quanta Magazine. Sometimes mathematicians try to tackle a problem head on, and sometimes they come at it sideways. That’s especially true when …
You Can Count on Pi
For geeks, there are several great holidays on the calendar. There is of course Mole Day (10/23) to commemorate Avogadro’s number, which is huge (on the order of 1023) and …