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Figure 2 is used for the multiples of 2, 4, 6, and 8. These patterns can be used to memorize the multiples of any number from 0 to 10, except 5. As you would start on the number you are multiplying, when you multiply by 0, you stay on 0 (0 is external and so the arrows have no effect on 0, otherwise 0 is used as a link to create a perpetual cycle).
A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
It is the third (or second) dodecahedral number, [4] and the sum of the first seven triangular numbers (1, 3, 6, 10, 15, 21, 28), which makes it the seventh tetrahedral number. [5] The number of divisors of 84 is 12. [6] As no smaller number has more than 12 divisors, 84 is a largely composite number. [7]
Systematic generalizations of this basic definition define the multiplication of integers (including negative numbers), rational numbers (fractions), and real numbers. Multiplication can also be visualized as counting objects arranged in a rectangle (for whole numbers) or as finding the area of a rectangle whose sides have some given lengths.
To do this, he called the numbers up to a myriad myriad (10 8) "first numbers" and called 10 8 itself the "unit of the second numbers". Multiples of this unit then became the second numbers, up to this unit taken a myriad myriad times, 10 8 ·10 8 =10 16. This became the "unit of the third numbers", whose multiples were the third numbers, and ...
a palindromic number in bases 5 (323 5), 10 (88 10), 21 (44 21), and 43 (22 43). a repdigit in bases 10, 21 and 43. a 2-automorphic number. [6] the smallest positive integer with a Zeckendorf representation requiring 5 Fibonacci numbers. a strobogrammatic number. [7] the largest number in English not containing the letter 'n' in its name, when ...
billion(s) (10 9) The German language uses the long scale. German Billion means "trillion" (10 12). L, T Msp. Messerspitze: pinch (lit. ' knife tip ') quantity in recipes T mtl. monatlich: monthly date/time L, T mdl. mündlich: verbal L m.ü.M. Meter über dem Meerespiegel meters above sea level L m.W. meines Wissens: to my knowledge, as far as ...
This notation is used wherever multiplication should be written explicitly, such as in "ab = a⋅2 for b = 2"; this usage is also seen in English-language texts. In some languages, the use of full stop as a multiplication symbol, such as a . b , is common when the symbol for decimal point is comma .