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# How Many Zeros in a billion?

We count in billions according to the international number system.

## Answer: There are 9 zeros in a billion.

Let us see the place value of a billion and count the 0s that a billion has.

**Explanation:**

One billion is also known as a thousand million and can be expressed as 1,000 × 1000,000 = 1,000,000,000. It is the smallest 10-digit number in math.

1 billion = 1000 millions = 1,000,000,000

This shows that it has 9 zeros.

### Therefore, 1 billion (1000000000) has 9 zeros.

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