Express 72 as a product of prime factors.
A8 x 9
B2² x 3³
C2³ x 3²CORRECT
D2 x 3 x 12
Common EntranceMathematicsPrime Factors
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Why the answer is C, and why the others tempt you.
72 = 2 x 2 x 2 x 3 x 3 = 2³ x 3². Numbers like 8, 9 and 12 are not prime.
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