Which of the following must be true about the sum of all the prime numbers between 20

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Which of the following must be true about the sum of all the prime numbers between 20 and 30?

A. It is a prime number.

B. It is an odd number.

C. It is a factor of 156.

D. It is a multiple of 5.

E. It is a factor of 10.


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Related Book For  answer-question

McGraw Hills Conquering SAT Math

ISBN: 9780071493413

2nd Edition

Authors: Robert Postman, Ryan Postman

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