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Multiplication by a positive number preserves the order: For a > 0, if b > c, then ab > ac. Multiplication by a negative number reverses the order: For a < 0, if b > c, then ab < ac. The complex numbers do not have an ordering that is compatible with both addition and multiplication. [30]
The numbers being multiplied are multiplicands, multipliers, or factors. Multiplication can be expressed as "five times three equals fifteen", "five times three is fifteen" or "fifteen is the product of five and three". Multiplication is represented using the multiplication sign (×), the asterisk (*), parentheses (), or a dot (⋅).
0 is a multiple of every number (=). The product of any integer n {\displaystyle n} and any integer is a multiple of n {\displaystyle n} . In particular, n {\displaystyle n} , which is equal to n × 1 {\displaystyle n\times 1} , is a multiple of n {\displaystyle n} (every integer is a multiple of itself), since 1 is an integer.
In arbitrary-precision arithmetic, it is common to use long multiplication with the base set to 2 w, where w is the number of bits in a word, for multiplying relatively small numbers. To multiply two numbers with n digits using this method, one needs about n 2 operations.
Arithmetic is the fundamental branch of mathematics that studies numbers and their operations. In particular, it deals with numerical calculations using the arithmetic operations of addition, subtraction, multiplication, and division. [1]
In 493 AD, Victorius of Aquitaine wrote a 98-column multiplication table which gave (in Roman numerals) the product of every number from 2 to 50 times and the rows were "a list of numbers starting with one thousand, descending by hundreds to one hundred, then descending by tens to ten, then by ones to one, and then the fractions down to 1/144." [6]
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Vietnamese ordinal numbers are generally preceded by the prefix thứ-, which is a Sino-Vietnamese word which corresponds to 次. For the ordinal numbers of one and four, the Sino-Vietnamese readings nhất (一) and tư (四/𦊛) are more commonly used; two is occasionally rendered using the Sino-Vietnamese nhì (二). In all other cases, the ...