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  2. 300 (number) - Wikipedia

    en.wikipedia.org/wiki/300_(number)

    300 is a composite number and the 24th triangular ... totient sum of the first 32 integers, a square number, ... 327 = 3 × 109. 327 is a perfect totient number, ...

  3. Square number - Wikipedia

    en.wikipedia.org/wiki/Square_number

    Square number 16 as sum of gnomons. In mathematics, a square number or perfect square is an integer that is the square of an integer; [1] in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals 3 2 and can be written as 3 × 3.

  4. List of Mersenne primes and perfect numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_Mersenne_primes...

    So, 6 is a perfect number because the proper divisors of 6 are 1, 2, and 3, and 1 + 2 + 3 = 6. [2] [4] Euclid proved c. 300 BCE that every prime expressed as M p = 2 p − 1 has a corresponding perfect number M p × (M p +1)/2 = 2 p − 1 × (2 p − 1).

  5. 256 (number) - Wikipedia

    en.wikipedia.org/wiki/256_(number)

    ← 0 100 200 300 400 500 600 700 800 900 ... 256 is a perfect square (16 2). 256 is the only 3-digit number that is zenzizenzizenzic. It is 2 to the 8th power or ...

  6. Square (algebra) - Wikipedia

    en.wikipedia.org/wiki/Square_(algebra)

    The square of an integer may also be called a square number or a perfect square. In algebra, the operation of squaring is often generalized to polynomials, other expressions, or values in systems of mathematical values other than the numbers. For instance, the square of the linear polynomial x + 1 is the quadratic polynomial (x + 1) 2 = x 2 ...

  7. Perfect square - Wikipedia

    en.wikipedia.org/wiki/Perfect_square

    A perfect square is an element of algebraic structure that is equal to the square of another element. Square number, a perfect square integer. Entertainment

  8. It turns out Punxsutawney Phil is wrong more often than not - AOL

    www.aol.com/news/report-questions-punxsutawney...

    Pennsylvania’s Punxsutawney Phil might be the most well-known weather-predicting groundhog, but a new list casts doubt on his accuracy.Phil did so poorly that even nonliving critters outshine ...

  9. Brocard's problem - Wikipedia

    en.wikipedia.org/wiki/Brocard's_problem

    Brocard's problem is a problem in mathematics that seeks integer values of such that ! + is a perfect square, where ! is the factorial. Only three values of n {\displaystyle n} are known — 4, 5, 7 — and it is not known whether there are any more.