Q:
# How many millions are in one billion?

**One billion is equal to 1,000 million.** One billion is written with a one followed by nine zeros, while one million is written with a one followed by six zeros. One billion is also written as 10^9, and one million is written as
10^6.

Credit:
TwilightEye
E+
Getty Images

Ten ones make 10, 10 10s make 100 and 10 100s make 1,000. One million contains 1,000 1,000s. One trillion is 1,000 billions or one million millions. It is written as a one followed by 12 zeros or 10^12. In Great Britain, however, one billion is written with 12 zeros and one trillion with 18 zeros.

Learn more about Numbers-
Q:
## Is 19 a prime number?

A: The number 19 is the eighth prime number. A prime number is a positive, whole number that is only divisible by one and itself. Nineteen is also the seventh... Full Answer >Filed Under: -
Q:
## What are some facts about the Dewey Decimal System?

A: The Dewey Decimal System is the most common method of classification for books in a library. Each digit in a book's classification relates to the book's co... Full Answer >Filed Under: -
Q:
## What are the prime factors of 45?

A: The prime factors of 45 are three, three and five. These three numbers represent the unique combination of prime numbers that, when multiplied together, pr... Full Answer >Filed Under: -
Q:
## What are the prime factors of 6?

A: The prime factors of 6 are 2 and 3. The number 6 cannot be factorized into any other combination of prime numbers. A prime number is a whole number larger ... Full Answer >Filed Under: