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In mathematics, a multiple is the product of any quantity and an integer. [1] In other words, for the quantities a and b, it can be said that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that / is an integer.
The largest factor found using ECM so far has 83 decimal digits and was discovered on 7 September 2013 by R. Propper. [1] Increasing the number of curves tested improves the chances of finding a factor, but they are not linear with the increase in the number of digits.
A prime number is a natural number that has exactly two distinct natural number divisors: the number 1 and itself. To find all the prime numbers less than or equal to a given integer n by Eratosthenes' method: Create a list of consecutive integers from 2 through n: (2, 3, 4, ..., n). Initially, let p equal 2, the smallest prime number.
If a number be the least that is measured by prime numbers, it will not be measured by any other prime number except those originally measuring it. — Euclid, Elements Book IX , Proposition 14 (In modern terminology: a least common multiple of several prime numbers is not a multiple of any other prime number.)
If two or more factors of a polynomial are identical, then the polynomial is a multiple of the square of this factor. The multiple factor is also a factor of the polynomial's derivative (with respect to any of the variables, if several). For univariate polynomials, multiple factors are equivalent to multiple roots (over
The argument is defined up to an integer multiple of 2 π; this means that, if is the argument of a complex number, then + is also an argument of the same complex number for every integer . The polar form of the product of two complex numbers is obtained by multiplying the absolute values and adding the arguments.
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In number theory, the prime omega functions and () count the number of prime factors of a natural number . Thereby (little omega) counts each distinct prime factor, whereas the related function () (big omega) counts the total number of prime factors of , honoring their multiplicity (see arithmetic function).
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