Somewhere in your skull right now, there is no math department. No region of the brain exists solely to process equations, ...

The p-adics form an infinite collection of number systems based on prime numbers. They’re at the heart of modern number theory. The rational numbers are the most familiar numbers: 1, -5, ½, and every ...

The Kakeya conjecture predicts how much room you need to point a line in every direction. In one number system after another — with one important exception — mathematicians have been proving it true.

Number System and Arithmetic are the two most basic, but extremely important, topics of Quantitative Aptitude. They make the foundation of one’s QA skills and go a long way in making one do well in ...