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

These are questions that Neil Sloane, a mathematician of Highland Park, New Jersey, loves to ask. Sloane is the founder of the On-Line Encyclopedia of Integer Sequences, a database of 362,765 (and ...

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 ...

A 'simple' math sequence has left the internet puzzled, proving that it may be far more complex than it appears at first glance. The mathematical brain teaser, posted by X user Bholanath DuttaFounder, ...

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 ...

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 ...