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What is a factor in math?

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In mathematics, a factor of a base number is any number that can be evenly divided into the base number. Due to this definition, a factor can only be less or equal to the original base number. Although all whole numbers can be divided evenly by one, it is still considered a factor.

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A single number can have multiple factors. For example, the number 10 has the factors 1, 2, 5 and 10. If a number only has two factors, one and itself, it is considered a prime number. An example of a prime number is 11, which can only be evenly divided by one and 11.

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Prime numbers are important in mathematics because they function as indivisible units and serve as the foundation of several mathematical disciplines. Because a prime number is a natural number greater than 1 that can only be divided by itself and 1, all non-prime numbers, which are called composite numbers, can be factored into a unique set of prime numbers. Computer security programs and cryptology are two fields that have made use of prime numbers to code and decode sensitive information.

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In mathematics, the term "interval" usually refers to a statistical confidence interval. Confidence intervals describe the likelihood of a statistical estimate being correct. Higher confidence intervals mean better chances that the estimate is correct, while lower confidence intervals mean better chances that the estimate is incorrect or flawed.

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In mathematics, the short word form is created by writing a large number using a combination of numbers and words. For instance, the short word form of 785,000 is 785 thousand.