Question

1. find the lcm.

9 5

Explanation:

Step1: Prime factorize each number

$9 = 3^2$, $5 = 5^1$

Step2: Take highest powers of all primes

$\text{LCM} = 3^2 \times 5^1$

Step3: Calculate the product

$\text{LCM} = 9 \times 5$

Answer:

45