| |
| | [No title] (Site not responding. Last check: 2007-10-24) |
 | | One of the earliest written records from ancient Egypt (transcribed circa 1650 BC from a source believed to date from around 1850 BC or earlier) is known as the Rhind Mathematical Papyrus, and contains a table expressing fractions of the form 2/n as sums of two, three, or four unit fractions with distinct denominators. |
 | | Thus, it's not surprising that 2/29 is the first entry in the Rhind Papyrus where a four-term representation is used. |
 | | In summary, the 2/n table of the Rhind Papyrus, which dates from more than a thousand years before Pythagoras, seems to show an awareness of prime and composite numbers, a crude version of the "Sieve of Eratosthenes", a knowledge of the arithmetic, geometric, and harmonic means, and of the "perfectness" of the number 6. |
| www.mathpages.com /home/rhind.htm (1273 words) |
|