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Gmat_mission
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For the positive integers \(a, b,\) and \(k,\) \(a^k\parallel b\) means that \(a^k\) is a divisor of \(b,\) but \(a^{k + 1}\) is not a divisor of \(b.\) If \(k\) is a positive integer and \(2^k \parallel 72,\) then \(k\) is equal to
(A) 2
(B) 3
(C) 4
(D) 8
(E) 18
Answer: B
Source: Official Guide
(A) 2
(B) 3
(C) 4
(D) 8
(E) 18
Answer: B
Source: Official Guide
