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  2. Divisibility rule - Wikipedia

    en.wikipedia.org/wiki/Divisibility_rule

    To test divisibility by any number expressed as the product of prime factors , we can separately test for divisibility by each prime to its appropriate power. For example, testing divisibility by 24 (24 = 8×3 = 2 3 ×3) is equivalent to testing divisibility by 8 (2 3 ) and 3 simultaneously, thus we need only show divisibility by 8 and by 3 to ...

  3. Number theory - Wikipedia

    en.wikipedia.org/wiki/Number_theory

    The interest of Leonhard Euler (1707–1783) in number theory was first spurred in 1729, when a friend of his, the amateur [note 8] Goldbach, pointed him towards some of Fermat's work on the subject. [ 50 ] [ 51 ] This has been called the "rebirth" of modern number theory, [ 52 ] after Fermat's relative lack of success in getting his ...

  4. Trial division - Wikipedia

    en.wikipedia.org/wiki/Trial_division

    Trial division is the most laborious but easiest to understand of the integer factorization algorithms. The essential idea behind trial division tests to see if an integer n, the integer to be factored, can be divided by each number in turn that is less than the square root of n.

  5. Rational sieve - Wikipedia

    en.wikipedia.org/wiki/Rational_sieve

    We will factor the integer n = 187 using the rational sieve. We'll arbitrarily try the value B=7, giving the factor base P = {2,3,5,7}.The first step is to test n for divisibility by each of the members of P; clearly if n is divisible by one of these primes, then we are finished already.

  6. Divisor - Wikipedia

    en.wikipedia.org/wiki/Divisor

    The divisors of 10 illustrated with Cuisenaire rods: 1, 2, 5, and 10. In mathematics, a divisor of an integer , also called a factor of , is an integer that may be multiplied by some integer to produce . [1] In this case, one also says that is a multiple of .

  7. Crowd crush kills 35 children at funfair in Nigeria, police say

    www.aol.com/crowd-crush-kills-35-children...

    At least 35 children were killed and six others critically injured in a crowd crush at a funfair in the Nigerian city of Ibadan on Wednesday, police said.

  8. The US still has not had a woman leader – here are the ...

    www.aol.com/us-still-not-had-woman-100042106.html

    The first woman was elected to lead a country 64 years ago. Here’s a look at where, and when, women have secured national leadership positions since then.

  9. Does Gatorade Hydrate You? - AOL

    www.aol.com/lifestyle/does-gatorade-hydrate...

    Go to any sports game—whether it’s a high school game or a pro one—and you’re bound to see athletes on the sidelines drinking Gatorade. It’s likely a staple at your local gym too. A ...

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