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The greatest common factor (GCF) of 48 and 72 is

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The greatest common factor (GCF) of 48 and 72 is [#permalink]  26 Nov 2017, 09:12
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50% (00:40) correct 50% (00:55) wrong based on 4 sessions
The greatest common factor (GCF) of 48 and 72 is

A. 4
B. 6
C. 12
D. 24
E. 48

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Joined: 20 Apr 2016
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WE: Engineering (Energy and Utilities)
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Re: The greatest common factor (GCF) of 48 and 72 is [#permalink]  30 Nov 2017, 06:21
Bunuel wrote:
The greatest common factor (GCF) of 48 and 72 is

A. 4
B. 6
C. 12
D. 24
E. 48

48 can be written as = $$2^4 X 3$$

72 can be written as = $$2^3 X 3^2$$

Therefore GCF = $$2^3 X 3 = 24$$
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Re: The greatest common factor (GCF) of 48 and 72 is   [#permalink] 30 Nov 2017, 06:21
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