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large numbers
The LCM of 2 numbers can be one of those numbers when the large of the 2 numbers is 2 times the smaller one of those numbers. For example the LCM of 2 and 4 is 4. For example the LCM of 5 and 10 is 10.
That is very difficult; I daresay most people can't do it. It requires keeping lots of numbers in memory.
The answer is 2 when you divide any number by another that is half as large. So you will get 2 if you divide 4 by2, or 128 by 64, or an infinite number of other combinations.
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large numbers
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The LCM of 2 numbers can be one of those numbers when the large of the 2 numbers is 2 times the smaller one of those numbers. For example the LCM of 2 and 4 is 4. For example the LCM of 5 and 10 is 10.
That is very difficult; I daresay most people can't do it. It requires keeping lots of numbers in memory.
The answer is 2 when you divide any number by another that is half as large. So you will get 2 if you divide 4 by2, or 128 by 64, or an infinite number of other combinations.
They break down very large numbers into groups of 3 from right to left thus making them easy to read as for example 30,000,000,000 is thirty billion
Very large or very small numbers are written out in scientific notationas for example 1,000,000 is 1.0*106
Obviously "large numbers"
You'd divide a document into sections to emphasize its logical structure: an overview, an introduction, a detailed discussion, followed by a concluding chapter and supplementary data, for example. You may also wish to divide a very large document into sections to make the individual sections more easily manageable than the whole.
To simplify fractions, you need to divide the numerator and denominator by their GCF. Otherwise you'll end up with fractions with unnecessarily large numbers.
Working with very large or very small numbers, in economics or science, for example.