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  2. Quadratic sieve - Wikipedia

    en.wikipedia.org/wiki/Quadratic_sieve

    To factorize the integer n, Fermat's method entails a search for a single number a, n 1/2 < a < n−1, such that the remainder of a 2 divided by n is a square. But these a are hard to find. The quadratic sieve consists of computing the remainder of a 2 /n for several a, then finding a subset of these whose product is a square. This will yield a ...

  3. Solvent - Wikipedia

    en.wikipedia.org/wiki/Solvent

    [14] [15] A 1:1 mixture of toluene and 1,4 dioxane has δD, δP and δH values of 17.8, 1.6 and 5.5, comparable to those of chloroform at 17.8, 3.1 and 5.7 respectively. Because of the health hazards associated with toluene itself, other mixtures of solvents may be found using a full HSP dataset.

  4. Recursion (computer science) - Wikipedia

    en.wikipedia.org/wiki/Recursion_(computer_science)

    In computer science, recursion is a method of solving a computational problem where the solution depends on solutions to smaller instances of the same problem. [1] [2] Recursion solves such recursive problems by using functions that call themselves from within their own code. The approach can be applied to many types of problems, and recursion ...

  5. RSA (cryptosystem) - Wikipedia

    en.wikipedia.org/wiki/RSA_(cryptosystem)

    RSA (Rivest–Shamir–Adleman) is a public-key cryptosystem, one of the oldest widely used for secure data transmission.The initialism "RSA" comes from the surnames of Ron Rivest, Adi Shamir and Leonard Adleman, who publicly described the algorithm in 1977.

  6. Integer square root - Wikipedia

    en.wikipedia.org/wiki/Integer_square_root

    One can prove [citation needed] that = is the largest possible number for which the stopping criterion | + | < ensures ⌊ + ⌋ = ⌊ ⌋ in the algorithm above.. In implementations which use number formats that cannot represent all rational numbers exactly (for example, floating point), a stopping constant less than 1 should be used to protect against round-off errors.

  7. Dutch East Indies - Wikipedia

    en.wikipedia.org/wiki/Dutch_East_Indies

    Much of Java became a Dutch plantation and revenue rose continually through the 19th century, which was reinvested into the Netherlands to save it from bankruptcy. [29] [111] Between 1830 and 1870, 840 million guilder (€8 billion in 2018 [112]) were taken from the East Indies, on average making a third of the annual Dutch government budget.

  8. History of Google - Wikipedia

    en.wikipedia.org/wiki/History_of_Google

    Scott Hassan and Alan Steremberg were cited by Page and Brin as being critical to the development of Google. Rajeev Motwani and Terry Winograd later co-authored with Page and Brin the first paper about the project, describing PageRank and the initial prototype of the Google search engine, published in 1998. Héctor García-Molina and Jeff Ullman were also cited as contributors to the project ...

  9. Brooklyn - Wikipedia

    en.wikipedia.org/wiki/Brooklyn

    [5] [6] [7] Brooklyn, at 37,339.9 inhabitants per square mile (14,417.0/km 2), is the second most densely populated county in the U.S. after Manhattan (New York County), as of 2022. [8] Had Brooklyn remained an independent city, it would now be the fourth most populous American city after the rest of New York City, Los Angeles , and Chicago .