NUMBER FACTS

- ANUNANDA.C -

VIII-C

·
The numerical digits we use today such
as 1, 2 and 3 are based on the Hindu-Arabic numeral system developed over 1000
years ago.

·
Different names for the number 0
include zero, nought, naught, nil, zilch and zip.

·
The smallest ten prime numbers are: 2,
3, 5, 7, 11, 13, 17, 19, 23 and 29.

·
2 and 5 are the only prime numbers that
end with a 2 or a 5.

·
The golden ratio of approximately 1.618
between two quantities such as lengths often appears in nature (tree branching,
uncurling ferns, pine cone arrangements etc) and has been used throughout
history to create aesthetically pleasing designs and art works such as Leonardo
da Vinci’s Mona Lisa.

·
Fibonacci numbers are named after
Italian mathematician Leonardo of Pisa (better known as Fibonacci) who introduced them
to Western Europe after they had earlier been described by Indian
mathematicians. They are related to the golden ratio and proceed in the
following order: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, .... Can
you see the pattern?

·
The number Pi (the ratio of the
circumference to the diameter of a circle) can’t be expressed as a fraction,
making it an irrational number. It never repeats and never ends when written as
a decimal.

·
Here is Pi written to 100 decimal
places:

3.1415926535897932384626433832795028841971693993751

058209749445923078164062862089986280348253421170679

3.1415926535897932384626433832795028841971693993751

058209749445923078164062862089986280348253421170679

·
What comes after a million, billion and
trillion? A quadrillion, quintillion, sextillion, septillion, octillion,
nonillion, decillion and undecillion.

·
The name of the popular search engine
‘Google’ came from a misspelling of the word ‘googol’, which is a very large
number (the number one followed by one hundred zeros to be exact).

·
A ‘googolplex’ is the number 1 followed
by a googol zeros, a number so ridiculously big that it can’t be written
because there literally isn't enough room in the entire universe to fit it in!

·
You might have heard the word
‘infinity’ before or seen its symbol that looks like the number 8 placed on its
side. Infinity means a limitless quantity or something that goes on forever.
While it’s not really a number like 1, 2 or 3, infinity is often used in math
as part of equations and formulas.

·
111111111 x 111111111 =
12345678987654321

·
12 + 3 - 4 + 5 + 67 + 8 + 9 = 100

nice

ReplyDelete