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Find the L.C.M. of 20a² and 32ab.

Find the L.C.M. of 20a² and 32ab.
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  • A 4a
  • B 16a2b
  • C 160a²b
  • D 160ab2 320a2b
Correct Answer: Option C
Explanation:
The prime factorizations are 20a² = 2² 5 a² and 32ab = 2^5 a b. The LCM is the highest power of each prime factor: 2^5 5 a² b = 160a²b.

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