Q: How Many Digits in the Number 7,840?

 A: The number 7,840 has 4 digits.

How does 7,840 have 4 digits?

You simply count the number of digits from the first number to the last. Like this:


7840
Digit # 1234

What are the number of digits of the numbers near 7,840?

7,8387,8397,8417,842
4444

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