# Q: How is the number 123,456,789 written in Scientific Notation?

^{8}

A: 1.23456789 x 10^{8}

The purpose of scientific notation is for scientists to write very large, or very small, numbers with ease.

Calculating scientific notation for a positive integer is simple, as it always follows this notation:

**a x 10 ^{b}**

Follow the steps below to see how 123,456,789 is written in scientific notation.

To find **a**, take the number and move a decimal place to the right one position.

- Original Number: 123,456,789
- New Number: 1.23456789

Now, to find **b**, count how many places to the right of the decimal.

New Number: | 1 | . | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |

Decimal Count: | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |

There are **8** places to the right of the decimal place.

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: **a x 10 ^{b}**

**a** = 1.23456789 (Please notice any zeroes on the end have been removed)

**b** = 8

Now the whole thing:

**1.23456789 x 10 ^{8}**

Check your work:

10^{8} = 100,000,000 x 1.23456789 = **123,456,789**

123,456,787 | 123,456,788 | 123,456,790 | 123,456,791 |

1.23456787 x 10^{8} | 1.23456788 x 10^{8} | 1.2345679 x 10^{8} | 1.23456791 x 10^{8} |

General Questions

Factoring Questions

- What are the factors or divisors of the number 123,456,789?
- What are the prime factors of the number 123,456,789?
- What is the total number of factors of the number 123,456,789?
- What is the total number of prime factors of the number 123,456,789?
- What is the sum of all factors of the number 123,456,789 including 123,456,789?
- What is the sum of all factors of the number 123,456,789 excluding 123,456,789?
- What are the factor combinations of the number 123,456,789?
- What is the prime factorization of the number 123,456,789?

Calculation Questions

Miscellaneous Questions

- How much data will 123,456,789 bytes hold in different storage units?
- What is 123,456,789 in other base number systems?
- How is 123,456,789 spelled out in other languages or countries?
- How is 123,456,789 formatted in other languages or countries?
- How is 123,456,789 formatted as currency in different languages or countries?
- What are the different hash algorithm outputs for 123,456,789?