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is a positive integer, which of the following could be n?
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24 May 2021, 10:03
24 May 2021, 10:03
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If \(\frac{21^{60}}{n}\) is a positive integer, which of the following could be n?
A. 2
B. 3
C. 4
D. 5
E. 6
A. 2
B. 3
C. 4
D. 5
E. 6
Re: is a positive integer, which of the following could be n?
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24 May 2021, 12:05
24 May 2021, 12:05
1
We can rewrite (21^60)/n to be ((3^60)*(7^60))/n)
and to make this fraction yield a positive integer, N must be either 3 or 7.
Hence the answer is (b) 3.
and to make this fraction yield a positive integer, N must be either 3 or 7.
Hence the answer is (b) 3.
gmatclubot
Re: is a positive integer, which of the following could be n? [#permalink]
24 May 2021, 12:05
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