Factors / Multiples
Practice Questions
ISEE Upper Level Mathematics Achievement › Factors / Multiples
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1
Which of the following numbers is prime?
2
Add all of the prime numbers between 20 and 40.
3
Which of the following numbers is prime?
4
Add all of the prime numbers between 20 and 40.
5
Add all of the prime numbers between 20 and 40.
6
Which of the following numbers is prime?
7
Let 
8
Let
9
Let
10
Find the greatest common factor of 20 and 36.
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