Use Euclid’s division algorithm to find the HCF of `210 and 55`.

Explanation

To find the HCF (Highest Common Factor) of 210 and 55 using Euclid's division algorithm, we can follow these steps:

### Step 1: Apply Euclid's Division Lemma
We start by dividing the larger number (210) by the smaller number (55).

\[ 210 = 55 \times 3 + 45 \]
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