Q: How Many Digits in the Number 478,338,421?

 A: The number 478,338,421 has 9 digits.

How does 478,338,421 have 9 digits?

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


478338421
Digit # 123456789

What are the number of digits of the numbers near 478,338,421?

478,338,419478,338,420478,338,422478,338,423
9999

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