Two pendulums of lengths `1.69m` and `1.44m` start swinging togther. After how many vibrations will they again start swinging togther?

Explanation

To solve the problem of when the two pendulums will swing together again, we need to determine the time periods of each pendulum and then find the least common multiple (LCM) of the number of oscillations they complete in a given time.

### Step-by-Step Solution:

1. **Identify the Lengths of the Pendulums:**
- Length of Pendulum 1 (L1) = 1.69 m
- Length of Pendulum 2 (L2) = 1.44 m

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