What is the most efficient way to achieve the answer in the attached question?
I broke it down by factors...
= 990
= 99 x 10
= 33 x 3 x 2 x 5
= 11 x 3 x 3 x 2 x 5
Therefore, least possible value of n = 11
Answer: B
Please advise whether this is correct, thanks.
I broke it down by factors...
= 990
= 99 x 10
= 33 x 3 x 2 x 5
= 11 x 3 x 3 x 2 x 5
Therefore, least possible value of n = 11
Answer: B
Please advise whether this is correct, thanks.
- Attachments
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- GMAT Prep 1_ PS Number Properties #11.docx
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