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Fascinating Triangular Numbers
Patterns of numbers don't come along every day, and so when they do, they need to be bragged about! The basic definition of triangular numbers begins this site which also lists many of the properties of these numbers, highlights the...
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Mersenne Prime Search: Homepage
This site from Mersenne Prime Search is maintained by a group of mathematicians looking for the 5 largest prime numbers. An interesting site for students to watch mathematicians at work and explore the world of prime numbers.