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How did ancient Egyptians know that they have to choose the symbols for multiple of 10 in their Egyptian number system, since at that time hindu-arabic system was not there and no one knows what is 1,2,3,...or 10?

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  • $\begingroup$ Somebody write please! $\endgroup$ – user629353 Dec 31 '18 at 7:40
  • $\begingroup$ See Egyptian numerals. $\endgroup$ – Mauro ALLEGRANZA Dec 31 '18 at 9:58
  • $\begingroup$ But I am asking after reading Wikipedia $\endgroup$ – user629353 Dec 31 '18 at 9:59
  • $\begingroup$ What does it mean "at that time hindu-arabic system was not there and no one knows what is 1,2,3,...or 10?" Of course the hindu-arabic numerals were not yet available... thus, they used different numerals (symbols for numbers). Ancient Greeks used difefrent numerals, ancient Romans dufferent, and so on. $\endgroup$ – Mauro ALLEGRANZA Dec 31 '18 at 10:00
  • $\begingroup$ how do we know that the Egyptians counting symbols correspond to power of 10 in today's language $\endgroup$ – user629353 Dec 31 '18 at 10:05
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The Egyptian language, like most languages of the world, has a counting system based implicitly on base 10. This is much older than any system of mathematical notation. When the Egyptians began writing numbers they reflected the counting system which existed in their language.

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  • $\begingroup$ Thanks, it helps $\endgroup$ – user629353 Jan 7 at 2:35

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