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Is "111" a prime number?

An example of a prime number would be the number 53. The number 53 is a prime number because it is only divisible by itself and the number one. One way to check if a number is prime is to see if it is divisible by three. To check if a number is divisible by three, simply find the sum of the digits of the number in question. The number 234 is not a prime number, because 2+3+4 = 9, which is divisible by 3.

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Who invented the number 0?

Both the concept of zero and the number itself have had a myriad of origins. First introduced as a placeholder, zero itself came to be used as a number over time.\nThe exact etymology of zero is disputed by various languages with possible influences including the French "zéro," the Venetian "zero" and the Italian "zefiro." Linguists tend to agree that the progenitor of the term zero originates from the Arabic "safira," which means, "It was empty."

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How do you use a full retirement age calculator?

To access a full retirement age calculator, go to the SSA.gov main page, scroll down, select Calculators under Items of Interest, and click on Retirement Age Calculator. Select the year you were born from the drop-down menu, and click on Your Full Retirement Age Is. If you were born before 1938, your full retirement age is 65, but after 1937, the full retirement age gradually increases until it reaches age 67 if you were born in 1960 or later.\nYou can choose to begin receiving benefits at age 62, but Social Security reduces the monthly amount you receive based on how early you initiate paymen..

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What is contemporary math?

Traditionally, most college freshman meet their mathematics requirement with a college algebra course that extends high school mathematics into advanced algebra concepts. The math concepts taught in college algebra are not typically used in careers outside of the areas of math, science and technology. Contemporary mathematics teaches students skills used in other career areas while developing critical thinking skills that are useful in any career. Topics covered in contemporary math courses include statistics, practical geometry and logic.

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How do you solve quadratic equations by factoring?

Convert the equation into standard form if necessaryConverting the equation makes it easier to factor into two binomials. Quadratic equations are parabolas that cross the x-axis up to two times. For an example, use the quadratic equation x^2 - 5x - 6 = 0.Separate the polynomial into two binomialsAsk yourself what factors of -6 add up to -5. Binomials are multiplied by the FOIL method of combining terms, and the two middle terms are added. In the example, the relevant factors are 1 and -6. When factored, the equation is (x +1)(x-6) = 0. If either binomial is zero, it satisfies the equation.Expr..

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How is a tally chart made?

A tally chart works by grouping tallies into fives. For instance, if taking a poll on people's favorite colors, after the color name, a person would add the tallies one by one. Once the person taking the survey reaches four, the fifth answer becomes a diagonal tally that crosses the other four. That groups the section into five, allowing them to quickly be added by fives as the number of answers increases.\n\nThere is actually another kind of tallying called Tukey tallying, according to Math Is Fun. This type of tallying uses four dots to create a square, then lines are drawn between each..

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How do you find the volume of a cube?

Take a side measurement \nUse a reliable instrument to measure the length of the cube. You only need to measure one side, since the lengths of the cube's edges are all equal. Convert the measurement into inches\nConvert the measurement of the side into inches, since the volume of the cube should be in cubic inches.Multiply the side by itself twiceUsing the basic formula for determining the volume of a cube in inches, multiply the inches of the side by itself twice. If the length of the side is S, then the volume is S x S x S. The unit of the resulting figure is cubic inches.

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What is the smallest prime number?

The only positive integer lower than 2 is 1, and 1 was indeed treated as a prime number throughout the 19th century. This convention was eventually dropped as the definition of a prime number was changed to exclude 1. The reason for this change relates to the way prime numbers are used to compute positive integers. Euclid proposed that each positive integer can be expressed as the product of unique prime numbers. Treating 1, which is the multiplicative identity, as a prime number falsifies this conjecture.

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What is a Scatchard plot?

The Scatchard plot allows chemists to understand the composition of micro-labeled drugs and the manner in which they bind to homogenous receptor drugs. On the Scatchard plot, x values represent the amount of micro-labeled drugs that bind to the receptor. The y values represent this x amount divided by the amount of micro-labeled drugs free in the solution. The curve of the plot is measured by the equation -1/K(d), with K(d) representing the separation value for a ligand. The plot is named after its inventor, American chemist and MIT professor George Scatchard.

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How many zeros are in one million?

The number one million is also known as one thousand thousand. It is written as 1,000,000. In scientific notation, one million is written as 10 to the 6th power. The prefix 'mega' as in megabyte, megawatt and megaton, denotes one million of a specific unit. One billion, on the other hand, is a number that has meant different things in different parts of the world throughout history. It is currently one thousand millions, but in the past, it meant one million millions. If you counted for eight hours each day, it would take nearly three weeks to reach one million.

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