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37 Heaven
Provides information about the amazing 37 factoids with notes. Includes details about sports, links, and movies.
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666
Information about a little archive of gleanings, theories, and links relating to the most misunderstood number of all. Includes feedbacks and bible numerics.
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Count the Number of the Beast: 666
Discusses of the prophecies about math and a calendar of activities. With contact information and related links.
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Curious properties of 153
Information on the references about number 153. Includes curious properties, sample problems, and online book information.
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Four
Contains information about the rational and irrational numbers, imaginary numbers, and complex numbers. With more mathematics discussion.
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Number Facts and Trivia
Shows free samples including business cards, desk calendars, holiday cards, and many more. With external sites and related links.
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Numbers
Information about the content, which includes hints, answers, a few large numbers, and further readings. Includes publications and contact information.