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  2. Special number 3 light tank Ku-Ro - Wikipedia

    en.wikipedia.org/wiki/Special_number_3_light...

    The Special number 3 light tank Ku-Ro (特三号戦車 クロ) (also known as the "So-Ra" [1]) was an experimental Japanese winged light tank project, developed during World War II. It is one of the notable aircraft concepts developed during that war. [2]

  3. Special number field sieve - Wikipedia

    en.wikipedia.org/wiki/Special_number_field_sieve

    In number theory, a branch of mathematics, the special number field sieve (SNFS) is a special-purpose integer factorization algorithm. The general number field sieve (GNFS) was derived from it. The special number field sieve is efficient for integers of the form r e ± s , where r and s are small (for instance Mersenne numbers ).

  4. General number field sieve - Wikipedia

    en.wikipedia.org/wiki/General_number_field_sieve

    Some implementations focus on a certain smaller class of numbers. These are known as special number field sieve techniques, such as used in the Cunningham project. A project called NFSNET ran from 2002 [6] through at least 2007. It used volunteer distributed computing on the Internet. [7]

  5. Cunningham Project - Wikipedia

    en.wikipedia.org/wiki/Cunningham_Project

    Special pages; Permanent link; ... The Cunningham Project is a collaborative effort started in 1925 to factor numbers of the form b n ... When the number is of a ...

  6. 1729 (number) - Wikipedia

    en.wikipedia.org/wiki/1729_(number)

    1729 is the natural number following 1728 and preceding 1730. It is the first nontrivial taxicab number, expressed as the sum of two cubic numbers in two different ways. It is known as the Ramanujan number or Hardy–Ramanujan number after G. H. Hardy and Srinivasa Ramanujan.

  7. List of recreational number theory topics - Wikipedia

    en.wikipedia.org/wiki/List_of_recreational...

    This is a list of recreational number theory topics (see number theory, recreational mathematics). Listing here is not pejorative : many famous topics in number theory have origins in challenging problems posed purely for their own sake.

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  9. List of number theory topics - Wikipedia

    en.wikipedia.org/wiki/List_of_number_theory_topics

    Irrational number. Square root of two; Quadratic irrational; Integer square root; Algebraic number. Pisot–Vijayaraghavan number; Salem number; Transcendental number. e (mathematical constant) pi, list of topics related to pi; Squaring the circle; Proof that e is irrational; Lindemann–Weierstrass theorem; Hilbert's seventh problem; Gelfond ...