Kenneth I. Appel, Mathematician Who Harnessed Computer Power, Dies at 80

Kenneth I. Appel, who helped usher the venerable mathematical proof into the computer age, solving a longstanding problem concerning colors on a map with the help of an I.B.M. computer making billions of decisions, died on April 19 in Dover, N.H. He was 80.

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48th Known Mersenne Prime Found!

On January 25th, the largest known prime number, 2^57,885,161-1, was discovered on Great Internet Mersenne Prime Search (GIMPS) volunteer Curtis Cooper's computer. The new prime number, 2 multiplied by itself 57,885,161 times, less one, has 17,425,170 digits.

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Animated Factorization Diagrams

A very cool visual representation of numbers and their factors.

Prime Number Patterns (II)

Another interesting article using circles on the distribution of primes and twin primes.

Proof Claimed For Deep Connection Between Primes

The usually quiet world of mathematics is abuzz with a claim that one of the most important problems in number theory has been solved.

Mathematician Shinichi Mochizuki of Kyoto University in Japan has released a 500-page proof of the abc conjecture, which proposes a relationship between whole numbers — a 'Diophantine' problem.

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Prime Number Patterns

Prime Number Patterns is a visual representation of determining which natural numbers are prime, deficient, perfect, or abundant.

NASA MathTrax

NASA MathTrax is a graphing tool for middle school and high school students to graph equations, physics simulations or plot data files. The graphs have descriptions and sound so you can hear and read about the graph. Blind and low vision users can access visual math data and graph or experiment with equations and datasets.

'The Scale of the Universe,' by Two Teenage Brothers

Another Flash animation of the size of the universe.