You need the Flash Player version 8.0.0.0 or higher and a JavaScript enabled browser to view this site

Number Patterns: Investigating Prime Numbers

Related Article: Learn more about education.

There are several ways to explore strategies for determining prime and composite numbers under 100.

browse videos in
education

HowStuffWorks.com Videos: Education MRSS Feed

Intel Chairman Interview (7:46)

Watch this video about the United Nations on HowStuffWorks. Intel Chairman Craig Barrett says Silicon Valley IT companies are in the right place at the right time to help the United Nations address the world's health, education, and economic... More »

Peter Donnelly on Statistical Mistakes (22:05)

Watch this video from TED featuring Oxford statistician Peter Donnelly on HowStuffWorks. Donnelly explores the common mistakes humans make in interpreting statistics, and the devastating impact these errors can have on the outcome of criminal... More »

BioVision Worldwide Children's Forum (2:25)

Watch this UNICEF video about BioVision on HowStuffWorks. Lyon, France hosts the BioVision Worldwide Children's Forum, an event that allows children from around the world to present and share their challenges and possible solutions. See how... More »

BioVision Nobel Breakfast, from UNICEF (2:25)

Watch this UNICEF video about nobel prize winners on HowStuffWorks. Three Nobel Prize winners joined a group of child leaders at the BioVision Science Forum in Lyon, France to discuss challenges in their regions. See how the BioVision Forum works in... More »

Do You Go to a Green College (1:44)

Watch this video about "green" colleges. According to the U.S. Green Buildings Council, there are more than 176 "green" colleges and universities. Do you go to one classified as a green college? Learn about what it takes to become a green college in... More »

recently added

What the Ancients Knew: Origin of Zero (1:46)

On The Science Channel's "What the Ancients Knew," learn how the Indians discovered the concept of zero.

Assignment Discovery: Golden Ratio (2:40)

Martin Ohm wrote the first article about the golden ratio in the textbook Die Raine Elementar Mathematik. This ratio was used to design some of the world's most famous buildings and paintings. Learn more on Discovery Channel's "Assignment... More »

Assignment Discovery: Logarithm Properties (1:30)

In this clip from "Assignment Discovery" on Discovery Channel, learn about how logarithms are exponents. Log of Y is the exponent which must be raised by 10.

Assignment Discovery: Solving a Linear Equality (0:48)

On the Discovery Channel series, "Assignment Discovery," we learn the process of solving a linear inequality. First, we convert the polynomial to slope-intercept form. Then, graph the line, and the solution you find will be on the half-plane.

Assignment Discovery: Rules of Inequalities (1:17)

An inequality is a mathematical sentence that describes the relationship between two numbers. One number can be less than, greater than, or equal to another number. Learn more in this clip from Discovery Channel's series, "Assignment Discovery."

Assignment Discovery: Linear Programming Problems (0:38)

All linear programming problems must have a quantity to be optimized and resource constraints. Today computers can solve these problems with thousands of variables. Learn more in this clip from Discovery Channel series "Assignment Discovery."

Assignment Discovery: Ordinal Numbers (1:16)

Ordinal numbers reflect the place something has in line. You can get an ordinal number from any cardinal number, by usually adding the letters "th" to the number. Learn more in this clip from Discovery Channel's series, "Assignment Discovery."

Assignment Discovery: The Golden Ratio (2:15)

On Discovery Channel's "Assignment Discovery," learn about the algebraic concept of the golden ratio (or golden mean) and how it applies to every day life.

Understanding: Bayes' Theorem (2:55)

On TLC's "Understanding," learn about Bayes' Theorem of probability and how it can be used to explain the odds of winning a game show.

Assignment Discovery: Monty Hall Problem (2:29)

Learn about the Monty Hall problem in a mathematical equation using conditional probability on Discovery Channel's "Assignment Discovery."