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  2. Divisibility rule - Wikipedia

    en.wikipedia.org/wiki/Divisibility_rule

    For divisors with multiple rules, the rules are generally ordered first for those appropriate for numbers with many digits, then those useful for numbers with fewer digits. To test the divisibility of a number by a power of 2 or a power of 5 (2 n or 5 n, in which n is a positive integer), one only need to look at the last n digits of that number.

  3. Remainder - Wikipedia

    en.wikipedia.org/wiki/Remainder

    In these examples, the (negative) least absolute remainder is obtained from the least positive remainder by subtracting 5, which is d. This holds in general. When dividing by d, either both remainders are positive and therefore equal, or they have opposite signs. If the positive remainder is r 1, and the negative one is r 2, then r 1 = r 2 + d.

  4. Division by zero - Wikipedia

    en.wikipedia.org/wiki/Division_by_zero

    Zero divided by a negative or positive number is either zero or is expressed as a fraction with zero as numerator and the finite quantity as denominator. Zero divided by zero is zero. In 830, Mahāvīra unsuccessfully tried to correct the mistake Brahmagupta made in his book Ganita Sara Samgraha : "A number remains unchanged when divided by zero."

  5. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    And because a negative divided by a negative produces a positive, ⁠ −1 / −2 ⁠ represents positive one-half. In mathematics a rational number is a number that can be represented by a fraction of the form ⁠ a / b ⁠ , where a and b are integers and b is not zero; the set of all rational numbers is commonly represented by the symbol Q ...

  6. Mathematical fallacy - Wikipedia

    en.wikipedia.org/wiki/Mathematical_fallacy

    In mathematics, certain kinds of mistaken proof are often exhibited, and sometimes collected, as illustrations of a concept called mathematical fallacy.There is a distinction between a simple mistake and a mathematical fallacy in a proof, in that a mistake in a proof leads to an invalid proof while in the best-known examples of mathematical fallacies there is some element of concealment or ...

  7. Leonard Nimoy's Widow Susan Bay Nimoy Says His Family ... - AOL

    www.aol.com/lifestyle/leonard-nimoys-widow-susan...

    By the time Leonard and Susan married in 1989, he had already appeared in four Star Trek films, with the fifth — Star Trek V: The Final Frontier — due out later that year.While Susan welcomed ...

  8. Your Call: Would you ever give the ball back to Patrick ... - AOL

    www.aol.com/sports/call-ever-ball-back-patrick...

    What’s more fun than second-guessing NFL coaches? Nothing, that’s what. So let’s do it every week, right here. This week: Staring into the teeth of the dragon.

  9. Some Costco eggs are recalled due to risk of salmonella - AOL

    www.aol.com/costco-eggs-recalled-due-risk...

    Some Costco eggs sold under the Kirkland Signature brand are being recalled due to the risk of salmonella, according to a notice from the U.S. Food and Drug Administration. The Kirkland Signature ...

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