alleryStart learning →Use the prime factors 2x2x2x2x3 (for 48) and 2x2x3x3x5 (for 180) to find their lowest common multiple.
A360
B540
C720
D1,440
Answer & Solution
Correct answer: C. 720
The LCM takes the highest power of each prime: 2 four times, 3 twice, 5 once, giving 16 x 9 x 5 = 720.
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