• Thumbnail for Sum of two cubes
    In mathematics, the sum of two cubes is a cubed number added to another cubed number. Every sum of cubes may be factored according to the identity a 3...
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  • Thumbnail for Cube (algebra)
    not the sum of two rational cubes. In real numbers, the cube function preserves the order: larger numbers have larger cubes. In other words, cubes (strictly)...
    24 KB (3,032 words) - 16:41, 16 May 2025
  • ways if negative roots are allowed (alternatively the sum of two cubes and the difference of two cubes): 91 = 63 + (−5)3 = 43 + 33. (See 1729 for more details)...
    5 KB (513 words) - 20:06, 15 April 2025
  • smallest number expressible as the sum of two cubes in two different ways". This conversation led to the definition of the taxicab number as the smallest...
    11 KB (1,246 words) - 08:38, 29 April 2025
  • Thumbnail for Taxicab number
    Taxicab number (category Pages displaying short descriptions of redirect targets via Module:Annotated link)
    defined as the smallest integer that can be expressed as a sum of two positive integer cubes in n distinct ways. The most famous taxicab number is 1729...
    13 KB (1,890 words) - 22:45, 5 May 2025
  • {n-1}{k}}} ⁠. Sum of two cubes Binomial number Sophie Germain's identity Aurifeuillean factorization Congruum, the shared difference of three squares...
    13 KB (2,118 words) - 16:46, 10 April 2025
  • number that is the sum of two cubes in two different ways. Attempting to classify all numbers this way leads to a paradox or an antinomy of definition. Any...
    11 KB (1,320 words) - 08:44, 27 December 2024
  • polynomial. Sparse polynomials often come up in sum or difference of powers equations. The sum of two cubes states that ( x + y ) ( x 2 − x y + y 2 ) = x...
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  • Thumbnail for Sums of three cubes
    that cannot be expressed as a sum of three cubes? More unsolved problems in mathematics In the mathematics of sums of powers, it is an open problem to...
    34 KB (3,715 words) - 15:16, 3 September 2024
  • prehistory. 1,729 is the smallest number that can be represented as the sum of two cubes in two ways, 1³ + 12³ = 9³ + 10³, serial number 2716057 = (952³ - 951³)...
    39 KB (5,203 words) - 01:11, 21 April 2025
  • 2 {\displaystyle a^{2}+3b^{2}} ) is the algebraic factorization of sum of two cubes: a 6 + 27 b 6 = ( a 2 + 3 b 2 ) ⋅ ( a 2 − 3 a b + 3 b 2 ) ⋅ ( a 2...
    14 KB (1,119 words) - 00:40, 25 April 2025
  • Thumbnail for Magic cube
    Heinz, All about Magic Cubes Marian Trenkler, Magic p-dimensional cubes Marian Trenkler, An algorithm for making magic cubes Marian Trenkler, On additive...
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  • centered cube number and a heptagonal number. The centered cube numbers are the sums of two consecutive cubes, and 189 can be written as sum of two cubes in...
    3 KB (367 words) - 01:39, 19 January 2025
  • Thumbnail for Pythagorean triple
    Pythagorean triple (category Arithmetic problems of plane geometry)
    as the sum of n positive perfect squares)", The On-Line Encyclopedia of Integer Sequences, OEIS Foundation Sum of consecutive cubes equal a cube, archived...
    81 KB (11,398 words) - 15:04, 15 May 2025
  • Thumbnail for Squared triangular number
    In number theory, the sum of the first n cubes is the square of the nth triangular number. That is, 1 3 + 2 3 + 3 3 + ⋯ + n 3 = ( 1 + 2 + 3 + ⋯ + n )...
    14 KB (1,874 words) - 05:13, 14 May 2025
  • sometimes another cube. The Fermat cubic, in which the sum of three cubes equals another cube, has a general solution. The power sum symmetric polynomial...
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  • factorization algorithm: algebraic factors of binomial numbers (e.g. difference of two squares and sum of two cubes), which depend on the exponent, and aurifeuillean...
    10 KB (995 words) - 12:02, 10 April 2025
  • Pandiagonal magic cubes are extensions of diagonal magic cubes (in which only the unbroken diagonals need to have the same sum as the rows of the cube) and generalize...
    1 KB (178 words) - 11:11, 12 July 2024
  • 9 is the sum of the cubes of the first two non-zero positive integers 1 3 + 2 3 {\displaystyle 1^{3}+2^{3}} which makes it the first cube-sum number greater...
    15 KB (1,382 words) - 20:13, 12 May 2025
  • Thumbnail for Carmichael number
    expressed as the sum of two cubes (of positive numbers) in two different ways. Let C ( X ) {\displaystyle C(X)} denote the number of Carmichael numbers...
    28 KB (3,602 words) - 19:26, 10 April 2025
  • as the sum of two positive cubes in two different ways. The first such number, 1729, is called the "Ramanujan–Hardy number". 4104 is the sum of 4096 +...
    790 bytes (77 words) - 15:52, 26 May 2023
  • Thumbnail for Srinivasa Ramanujan
    Srinivasa Ramanujan (category Fellows of the Royal Society of Arts)
    the sum of two cubes in two different ways." Immediately before this anecdote, Hardy quoted Littlewood as saying, "Every positive integer was one of [Ramanujan's]...
    106 KB (11,705 words) - 05:07, 14 May 2025
  • Thumbnail for Cube
    six cubes with rotational freedom, three cubes, and five cubes. Two compounds, consisting of two and three cubes were found in Escher's wood engraving print...
    61 KB (6,298 words) - 17:40, 14 May 2025
  • is a pentatope number. 126 is a sum of two cubes, and since 125 + 1 is σ3(5), 126 is the fifth value of the sum of cubed divisors function. 126 is the fifth...
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  • simplify the expression. For instance using the factorization of the sum of two cubes: 1 a 3 + b 3 = a 2 3 − a b 3 + b 2 3 ( a 3 + b 3 ) ( a 2 3 − a...
    32 KB (4,773 words) - 18:22, 4 April 2025
  • to the cube's magic constant. Perfect magic cubes of order one are trivial; cubes of orders two to four can be proven not to exist, and cubes of orders...
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  • Thumbnail for Putney
    Putney (category Districts of the London Borough of Wandsworth)
    interesting number; it is the smallest number expressible as the sum of two cubes in two different ways." Putney is served by mainline South Western Railway...
    52 KB (6,206 words) - 17:11, 16 May 2025
  • Thumbnail for Sixth power
    powers of integers can be characterized as the numbers that are simultaneously squares and cubes. In this way, they are analogous to two other classes of figurate...
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  • classifications. The magic constant for magic cubes is S = m(m3 + 1)/2. A proper pantriagonal magic cube has 7m2 lines summing correctly. It contains no magic squares...
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  • of a crumpled cube and an open 3-ball glued along their boundaries is a 3-sphere. Martin, Joseph (1966). "The sum of two crumpled cubes". Michigan Mathematical...
    1 KB (101 words) - 19:30, 15 October 2023