Test whether 6800900292 is divisible by 999 or not.

Explanation

To determine whether the number 6800900292 is divisible by 999, we can use the divisibility rule for 999, which states that if the sum of the groups of three digits of a number is divisible by 999, then the number itself is also divisible by 999.

Here’s a step-by-step solution:

### Step 1: Group the digits in threes from the right
We start grouping the digits of the number 6800900292 into sets of three, beginning from the right.

- The first group is 292
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