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  2. Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania

    Pennsylvania (/ ˌ p ɛ n s ɪ l ˈ v eɪ n i ə / ⓘ PEN-sil-VAY-nee-ə, lit. ' Penn's forest country '), officially the Commonwealth of Pennsylvania [b] (Pennsylvania Dutch: Pennsylvanie), [7] is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States.

  3. Complex number - Wikipedia

    en.wikipedia.org/wiki/Complex_number

    A complex number can be visually represented as a pair of numbers (a, b) forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the "imaginary unit", that satisfies i 2 = −1.

  4. Legality of incest - Wikipedia

    en.wikipedia.org/wiki/Legality_of_incest

    Article 345 [96] of the Greek Penal Code as modified by Article 2, Paragraph 8 of Law 3625/2007 [97] and Article 3 Paragraph 10 of Law 3727/2008 [98] prohibits incestuous relations between relatives of both ascending and descending line, and between half or full siblings, and imposes (1) for the ascending relative (for example father, uncle ...

  5. List of Mersenne primes and perfect numbers - Wikipedia

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

    This is due to the Euclid–Euler theorem, partially proved by Euclid and completed by Leonhard Euler: even numbers are perfect if and only if they can be expressed in the form 2 p − 1 × (2 p − 1), where 2 p − 1 is a Mersenne prime. In other words, all numbers that fit that expression are perfect, while all even perfect numbers fit that ...

  6. Lotto New Zealand - Wikipedia

    en.wikipedia.org/wiki/Lotto_New_Zealand

    The New Zealand Cabinet approved the creation of Lotto in February 1986, the necessary legislation passing through Parliament in April that year with a 47–20 vote. The New Zealand Lotteries Commission was established in June 1987 and the existing Golden Kiwi lottery came under its authority.

  7. Fibonacci sequence - Wikipedia

    en.wikipedia.org/wiki/Fibonacci_sequence

    In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted F n . The sequence commonly starts from 0 and 1, although some authors start the sequence from 1 and 1 or sometimes (as did Fibonacci ...

  8. JD Vance - Wikipedia

    en.wikipedia.org/wiki/JD_Vance

    James David "JD" Vance [a] (né Bowman; formerly Hamel; [b] born August 2, 1984) is an American politician, author, and Marine veteran who has served since 2023 as the junior United States senator from Ohio.

  9. Composite number - Wikipedia

    en.wikipedia.org/wiki/Composite_number

    A number n that has more divisors than any x < n is a highly composite number (though the first two such numbers are 1 and 2). Composite numbers have also been called "rectangular numbers", but that name can also refer to the pronic numbers, numbers that are the product of two consecutive integers.