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#REDIRECT Numeral systemsThe system of Egyptian numerals is a numeral system used in ancient Egypt. It is a decimal system, written in hieroglyphs. A later hieratic numeral system was also developed, using simplified forms of the hieroglyphs.

1 Digits and numbers

The following hieroglyphs were used to denote powers of ten:

Value 1 10 100 1,000 10,000 100,000 1 million, or
infinity
Hieroglyph Z1 V20 Z7
or
V1
M12 D50 I8
or
I7
C11
Name Staff or
single stroke
Cattle hobble
or heel bone
or yoke
Coil of rope
or scroll
or snare
Lotus
flower
Finger Tadpole
or FrogA frog is a fresh-water amphibian which changes from a tadpole and is of the family Ranidae in the Order Anura. They are closely related to toads. The Ranidae are sometimes called the "true frogs" since a few members of other families also have common nam
or burbotBurbot : Animalia : Chordata : Actinopterygii : Gadiformes : Lotidae Lota lota Binomial name ''Lota lota Linne, 1758 The Burbot Lota lota is a fresh-water fish (Pisces, Teleostei) related to the cods. It is also known as the lawyer and eel-pout and closel fish
Man with both
hands raised

Multiples of these values were expressed by repeating the symbol as many times as needed. For instance, a stone carving from KarnakKarnak is a village in Egypt that was once part of the ancient capital of Egypt, Thebes. It is situated about 3 km (2 miles) north of Luxor Temple. For many centuries Karnak temple was the main religious centre of Egypt, with each Pharaoh adding to or alt shows the number 4622 as

M12-M12-M12-M12-!-Z7*Z7*Z7:Z7*Z7*Z7-!-V20-V20-Z1-Z1

Egyptian hieroglyphs could be written in both directionsThe writing systems of some languages, such as Hebrew and Arabic are written from right to left. When Latin-based text is mixed with these languages in the same sentence, each type of text should be written in its own direction. This is known as bi-direct (and even vertically). This example is written left-to-right and top-down; on the original stone carving, it is right-to-left, and the signs are thus inversed.

2 Fractions

Main article: Egyptian fractionAn Egyptian fraction is a sum of distinct unit fractions, i. fractions whose numerators are equal to 1, whose denominators are positive integers, and all of whose denominators differ from each other. It can be shown that every positive rational number can

Rational numberIn mathematics, a rational number (or informally fraction is a ratio of two integers, usually written as the vulgar fraction a ''b where b is not zero. The set of all rational numbers is denoted by Q or in blackboard bold. Using the set-builder notation is could also be expressed, but only as sums of unit fractionA unit fraction is a rational number written as a fraction where the numerator is one and the denominator is a positive integer. A unit fraction is therefore the reciprocal of a positive integer, 1 n''. Examples are 1/1, 1/2, 1/3, 1/42 etc. The partial sus, i.e. sums of reciprocalIn mathematics, the reciprocal or multiplicative inverse of a number x is the number which, when multiplied by x, yields 1. Zero does not have a reciprocal. Every complex number except zero has a reciprocal that is a complex number. If it is real then sos of positive integers, except for 2/3 and 3/4. The hieroglyph indicating a fraction looked like a mouth, which meant "part":
D21

Fractions were written with this fractional solidus, i.e. the numerator 1, and the positive denominator below. Thus, 1/3 was written as:

D21:Z1*Z1*Z1

There were special symbols for 1/2 and for two non-unit fractions, 2/3 (used frequently) and 3/4 (used less frequently):

Aa13   D22   D23

If the denominator became too large, the "mouth" was just placed over the beginning of the "denominator":

D21:Z7*Z7*Z7-V20*V20:V20*Z1






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