Find the LCM of the following numbers :(a)   9 and 4     (b)  12 and 5    (c)   6 and 5    (d)  15 and 4Observe a common property in the obtained LCMs. Is LCM the product of twonumbers in each case?

Explanation

To find the LCM (Least Common Multiple) of the given pairs of numbers, we will follow these steps:

### Step-by-Step Solution:

**(a) Find the LCM of 9 and 4:**
1. **Prime Factorization:**
- 9 = 3 × 3 (or \(3^2\))
- 4 = 2 × 2 (or \(2^2\))
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