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  2. Table of prime factors - Wikipedia

    en.wikipedia.org/wiki/Table_of_prime_factors

    Ω(n), the prime omega function, is the number of prime factors of n counted with multiplicity (so it is the sum of all prime factor multiplicities). A prime number has Ω(n) = 1. The first: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 (sequence A000040 in the OEIS). There are many special types of prime numbers. A composite number has Ω(n) > 1.

  3. 120 (number) - Wikipedia

    en.wikipedia.org/wiki/120_(number)

    The sum of its factors (including one and itself) sum to 360, exactly three times 120. Perfect numbers are order two ( 2-perfect ) by the same definition. 120 is the sum of a twin prime pair (59 + 61) and the sum of four consecutive prime numbers (23 + 29 + 31 + 37), four consecutive powers of two (8 + 16 + 32 + 64), and four consecutive powers ...

  4. List of prime numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_prime_numbers

    This is a list of articles about prime numbers.A prime number (or prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. By Euclid's theorem, there are an infinite number of prime numbers.

  5. List of repunit primes - Wikipedia

    en.wikipedia.org/wiki/List_of_repunit_primes

    For n greater than 1, both + and are greater than 4, so removing the factor of 8 (which is equivalent to removing the factor 4 from + or , and removing the factor 2 from the other number) still leaves two factors greater than 1. Therefore, the number cannot be prime.

  6. Prime number - Wikipedia

    en.wikipedia.org/wiki/Prime_number

    One possible formula is based on Wilson's theorem and generates the number 2 many times and all other primes exactly once. [58] There is also a set of Diophantine equations in nine variables and one parameter with the following property: the parameter is prime if and only if the resulting system of equations has a solution over the natural numbers.

  7. CVS Health bulks its board up to 16 members, adds hedge fund CEO

    www.aol.com/cvs-health-bulks-board-16-145113248.html

    CVS Health has added four new board members, including the CEO of a hedge fund that has been critical of the struggling health care giant. The company said Monday that it expanded its board to 16 ...

  8. Composite number - Wikipedia

    en.wikipedia.org/wiki/Composite_number

    If none of its prime factors are repeated, it is called squarefree. (All prime numbers and 1 are squarefree.) For example, 72 = 2 3 × 3 2, all the prime factors are repeated, so 72 is a powerful number. 42 = 2 × 3 × 7, none of the prime factors are repeated, so 42 is squarefree. Euler diagram of numbers under 100:

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