SAT Example (the Mathematics Section)

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CLI 아카데미
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2012-12-30 11:42
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 Math: Student-Produced Response questions

 

 

What is the product of the smallest prime number that is greater than 50 and the greatest prime number that is less than 50?
 

Correct Answer: 2,491:

 

 

Explanation>

 

MathTerm(s):

Prime number – A number that can be divided by only itself and one.

(Note that 1 is not a prime number.)

 

The smallest prime number greater than 50 is 53, and the greatest prime number that is less than 50 is 47. Therefore, the product of these two number is 2,491.

     53 x 47 = 2,491