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The sum of the first nine primes up to 23 is a square: + + + = = and the sum of the first 23 primes is 874, which is divisible by 23, a property shared by few other numbers. [ 7 ] [ 8 ] It is the fifth factorial prime , [ 9 ] and since 14! + 1 is a multiple of 23, but 23 is not one more than a multiple of 14 , 23 is the first Pillai prime .
Whilst the words billion and trillion, or variations thereof were first used by French mathematicians in the 15th century, [2] the word trillion was first used in English in the 1680s and comes from the Italian word trilione. [3] The word originally meant the third power of one million.
In mathematics, a multiplication table (sometimes, less formally, a times table) is a mathematical table used to define a multiplication operation for an algebraic system. The decimal multiplication table was traditionally taught as an essential part of elementary arithmetic around the world, as it lays the foundation for arithmetic operations ...
Most English variants use the short scale today, but the long scale remains dominant in many non-English-speaking areas, including continental Europe and Spanish-speaking countries in Latin America. These naming procedures are based on taking the number n occurring in 10 3 n +3 (short scale) or 10 6 n (long scale) and concatenating Latin roots ...
Now, it’s time to put it all together. Here are three sample check amounts, with examples of how to write them out correctly: $1,750: One thousand, seven hundred fifty and 00/100
The English language has a number of words that denote specific or approximate quantities that are themselves not numbers. [1] Along with numerals, and special-purpose words like some, any, much, more, every, and all, they are Quantifiers. Quantifiers are a kind of determiner and occur in many constructions with other determiners, like articles ...
In mathematics, a power of 10 is any of the integer powers of the number ten; in other words, ten multiplied by itself a certain number of times (when the power is a positive integer). By definition, the number one is a power (the zeroth power) of ten. The first few non-negative powers of ten are:
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