An army contingent of `616` members is to march behind an army band of `32` members in a parade. The two groups are to march in the same number of columns. What is the maximum number of columns in which they can march?

Explanation

To find the maximum number of columns in which both the army contingent of 616 members and the army band of 32 members can march, we need to determine the highest common factor (HCF) of the two numbers.

### Step-by-Step Solution:

1. **Identify the Numbers**:
- Army contingent = 616
- Army band = 32

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