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16 Dec 2021, 07:00
Kudos
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
77% (00:59) correct
23%
(01:19)
wrong
based on 341
sessions
History
Date
Time
Result
Not Attempted Yet
12 Days of Christmas GMAT Competition with Lots of Fun
\(72^4\) has how many positive factors?
A. 5
B. 20
C. 70
D. 96
E. 117
\(72^4\) has how many positive factors?
A. 5
B. 20
C. 70
D. 96
E. 117
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General Discussion
16 Dec 2021, 07:17
Kudos
Bookmarks
Asked: \(72^4\) has how many positive factors?
\(72 = 2^3*3^2\)
\(72^4 = 2^12*3^8\)
Positive factors of \(72^4 = 2^12*3^8\) = (12+1)(8+1) = 13*9 = 117
IMO E
\(72 = 2^3*3^2\)
\(72^4 = 2^12*3^8\)
Positive factors of \(72^4 = 2^12*3^8\) = (12+1)(8+1) = 13*9 = 117
IMO E
