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Titlebook: Number Story; From Counting to Cry Peter M. Higgins Book 20081st edition Springer-Verlag London 2008 Counting.Magic.Number theory.cryptogra

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Some Tricky Numbers, they all missed the small pair of 1184 and 1210, discovered by 16-year old Nicolo Pagnini in 1866. We can of course try to go beyond pairs and look for perfect triples, quadruples, and so on. These longer cycles are rare but do crop up.
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Some Useful Numbers, want to base our system on a power of 10, and 10 parts is a bit too coarse a measure to be really useful, and so 100 is used. One percent therefore is just 1/100 part of the object under discussion. To turn a fraction into a percentage, we simply need to multiply by 100.
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Book 20081st editioner system was not presented to us “gift-wrapped” but, rather, was developed over millennia. Peter Higgins distills centuries of work into one delightful narrative that celebrates the mystery of numbers and explains how different kinds of numbers arose and why they are useful. Full of historical snip
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