Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Number sequences are sets of numbers that follow a pattern or a rule. Each number in a sequence is called a term. A sequence which increases or decreases by the same amount each time is called a ...

1, 11, 21, 1211, 111221. These are the first five elements of a number sequence. Can you figure out what comes next? If you're trying a bunch of arithmetic operations to make the numbers work, you're ...

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

Here's a deeply satisfying number pattern for your mathematical Monday. Here, Numberphile explains the Kolakoski sequence, which begins as follows: 1, 2, 2, 1, 1, 2 ...