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Title : Amazing Facts of Numbers | World Facts News
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Amazing Facts of Numbers | World Facts News
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We use numbers in almost everything we do. We count the number of students in a class, look for a house number on a street, or use page numbers in a book. Number is a mathematical concept that is used for enumeration and measurement. Symbols or symbols used to represent a number are called numbers or symbols. In mathematics, the concept of numbers has been expanded over the years to include zero numbers, negative numbers, rational numbers, irrational numbers, and complex numbers. (quoted from Wikipedia)
The ancients might have recorded numbers with stones, or by making marks on sticks or clays. It was only afterwards that humans used symbols for numbers.
Hindu - Arabic numbers
We use the Hindu-Arabic system to write and count numbers. It was first used in the VI century in India and has only ten symbols - 0,1,2,3,4,5,6,7,8, and 9
The Meaning of Change
We can use the Hindu-Arabic system to write any number. The position of any number symbol. The position of each number symbol influences its meaning. In the number 765, for example the number 5 represents 5 units, the numbers 6 for 6 dozens, and the number 7 represents 7 hundreds.
Primes
Prime numbers are numbers that cannot be obtained by multiplying smaller numbers. In this table, prime numbers are colored red. Numbers in the white box can be obtained by multiplying smaller numbers.
Number Type:
- Integers - Example: B = ...., -3, -2, -1, 0, 1, 2, 3, .....
- Natural Numbers - Example: A = 1, 2, 3, 4, 5, .....
- Prime Numbers - Example: P = 2, 3, 5, 7, 11, 13, 17, .....
- Count Numbers - Example: C = 0, 1, 2, 3, 4, 5, 6, .....
- Zero Number - Example: N = 0
- Fraction Numbers - Example: H = ⅓, ⅔, ⅛, ⅝, ..... (Additional information: 4/2 = 2, means 4/2 is not a fraction.)
- Rational Numbers - Example: R = ¼, ¾, ....
- Irrational Numbers - Example: I = √2, √3, √5, √6, √7, .....
- Real Numbers - Example: R = 0, 1, ¼, ⅔, √2, √5, .....
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