If two numbers are (2^3\times3\times7) and (2\times3^2\times5), what is their LCM?
Answer and explanation
Correct answer: (2^3\times3^2\times5\times7)
Step 1: LCM takes the highest power of every prime. Step 2: Combining (2^3), (3^2), (5), and (7) gives (2^3\times3^2\times5\times7). Step 3: Include primes that occur in only one number too.
Frequently asked questions
What is the correct answer to this question?
(2^3\times3^2\times5\times7)
Why is this the correct answer?
Step 1: LCM takes the highest power of every prime. Step 2: Combining (2^3), (3^2), (5), and (7) gives (2^3\times3^2\times5\times7). Step 3: Include primes that occur in only one number too.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: HCF and LCM using prime factorisation.
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