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List of numeral systems

From Simple English Wikipedia, the free encyclopedia
A number system is example for each one.

There are multiple numeral systems, that is in positional notation for showing numbers.

Here are all numeral systems from 1 to 13:

Numeral systems from 1 to 5

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Name Base Talk
Unary 1 A base-1 numeral system is called unary.
Binary 2 Binary (also called base-2) is a numeral system that has two digits: 0 and 1.
Ternary, Trinary 3 Ternary numeral system (also called base-3 or trinary) is a numeral system that has three digits: 0, 1, and 2.
Quaternary, Quaternal 4 Quaternary (also called base-4) is a numeral system that has four digits: 0, 1, 2, and 3.
Quinary, Pental 5 Quinary system (also called as base-5 or pental) is a numeral system that has five digits: 0, 1, 2, 3, and 4.

Numeral systems from 6 to 10

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Name Base Talk
Senary, seximal 6 Senary numeral system (also known as base-6 heximal or seximal) is a numeral system that has six digits: 0, 1, 2, 3, 4, and 5.
Septenary, septimal 7 Septenary system (also known as base-7) is a numeral system that has seven digits: 0, 1, 2, 3, 4, 5, and 6.
Octal 8 Octal (also known as base-8) is a numeral system that has eight digits: 0, 1, 2, 3, 4, 5, 6, and 7.
Nonary, nonal 9 Done
Decimal, denary 10 Done

Numeral systems from 11 to 13

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Name Base
Undecimal, undenary 11
Duodecimal, dozenal 12
Tredecimal, tridecimal 13