All ISEE Upper Level Math Resources
Example Questions
Example Question #11 : How To Find Out If A Number Is Prime
Which of the following is a prime number?
Possible Answers:
Correct answer:
Explanation:
Which of the following is a prime number?
The answer here is 13, because 13 has no factors other than 1 and itself.
51 is divisible by 3 and 17.
39 is divisible by 13 and 3.
81 is divisible by 9, 3, and 27
Example Question #12 : How To Find Out If A Number Is Prime
Find the sum of all the prime numbers between and .
Possible Answers:
Correct answer:
Explanation:
The prime numbers between and are , , , and . Their sum is:
.
Reza
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University of Sherbrooke, Doctor of Philosophy, Mathematics. University of Manitoba, Master of Science, Mathematics.
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University of Oregon, Bachelor in Arts, Journalism. University of Oregon, Current Grad Student, Communication, General.
All ISEE Upper Level Math Resources
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