()) Is 786,645 divisible by 9 ?

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UpStudy AI · Accepted Answer

Yes, **786,645** is divisible by **9**.

Here's how you can determine this using the divisibility rule for 9:

### Divisibility Rule for 9:
A number is divisible by 9 if the **sum of its digits** is also divisible by 9.

### Applying the Rule to 786,645:

1. **Calculate the sum of the digits:**
   $$
   7 + 8 + 6 + 6 + 4 + 5 = 36
   $$

2. **Check if the sum is divisible by 9:**
   $$
   36 \div 9 = 4 \quad \text{(which is an integer)}
   $$
   
   Since 36 is divisible by 9, the original number **786,645** is also divisible by 9.

### Verification by Division:
To further confirm, you can perform the division:

$$
786,645 \div 9 = 87,405
$$

Since the division results in a whole number (**87,405**), this confirms that **786,645** is indeed divisible by **9**.
786,645 is divisible by 9.

()) Is 786,645 divisible by 9 ?

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