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  2. Integer factorization - Wikipedia

    en.wikipedia.org/wiki/Integer_factorization

    For example, 15 is a composite number because 15 = 3 · 5, but 7 is a prime number because it cannot be decomposed in this way. If one of the factors is composite, it can in turn be written as a product of smaller factors, for example 60 = 3 · 20 = 3 · (5 · 4).

  3. Table of Gaussian integer factorizations - Wikipedia

    en.wikipedia.org/wiki/Table_of_Gaussian_Integer...

    The factorizations are often not unique in the sense that the unit could be absorbed into any other factor with exponent equal to one. The entry 4+2i = −i(1+i) 2 (2+i), for example, could also be written as 4+2i= (1+i) 2 (1−2i). The entries in the table resolve this ambiguity by the following convention: the factors are primes in the right ...

  4. Factorization - Wikipedia

    en.wikipedia.org/wiki/Factorization

    In this factorization, the rational number is called the content, and the primitive polynomial is the primitive part. The computation of this factorization may be done as follows: firstly, reduce all coefficients to a common denominator, for getting the quotient by an integer q of a polynomial with integer

  5. Lenstra elliptic-curve factorization - Wikipedia

    en.wikipedia.org/wiki/Lenstra_elliptic-curve...

    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.

  6. Fermat's factorization method - Wikipedia

    en.wikipedia.org/wiki/Fermat's_factorization_method

    If the approximate ratio of two factors (/) is known, then a rational number / can be picked near that value. N u v = c v ⋅ d u {\displaystyle Nuv=cv\cdot du} , and Fermat's method, applied to Nuv , will find the factors c v {\displaystyle cv} and d u {\displaystyle du} quickly.

  7. What is a factor rate and how to calculate it - AOL

    www.aol.com/finance/factor-rate-calculate...

    Find the annual interest rate by multiplying the percentage by the total number of days in a year. Example: 0.5 x 365 = 182.5 Then, divide that figure by the number of days in the repayment period.

  8. Formula for primes - Wikipedia

    en.wikipedia.org/wiki/Formula_for_primes

    Because the set of primes is a computably enumerable set, by Matiyasevich's theorem, it can be obtained from a system of Diophantine equations. Jones et al. (1976) found an explicit set of 14 Diophantine equations in 26 variables, such that a given number k + 2 is prime if and only if that system has a solution in nonnegative integers: [7]

  9. How to refinance your ARM into a fixed-rate mortgage - AOL

    www.aol.com/finance/refinance-arm-fixed-rate...

    In this case, the 5 represents the number of years your rate is locked with the 1 representing the frequency at which your rate adjusts after. With a 5/1 ARM loan, that’s once a year. With a 5/1 ...