# Quintillion in Math: Definition with Examples

## What Is a Quintillion in Math?

A quintillion is represented as 1,000,000,000,000,000,000

So, how many zeros are in a quintillion? Let’s count the quintillion zeros!

Alt tag: quintillion zeros

Thus, 1 followed by 18 zeros makes a quintillion.

In an exponent form, a quintillion is simply $10^{18}$ or 10 raised to the power of 18.

Alt tag: quintillion

Thus, you can see that a quintillion is a large number in math. It is used to represent huge quantities. It is used in extremely complex scientific calculations dealing with celestial bodies, the universe or the solar system.

The prefix “exa” is used for quantities of a quintillion. It represents the factor of $10^{18}$.

For example,

(i) An exabyte is equal to one quintillion bytes

(ii) An exameter is equal to one quintillion meters

(iii) An exascale refers to the speed of computing systems, equal to one quintillion operations per second.

## How Much Is a Quintillion?

To understand a large number and to make a sense of it, we can represent it in different ways or in terms of smaller quantities.

1. Scientific notation: $1 \times 10^{18}$
1. A million million millions

$1,000,000 \times 1,000,000 \times 1,000,000 = 1,000,000,000,000,000,000$

1. Billion Billions

$1,000,000,000 \times 1,000,000,000 = 1,000,000,000,000,000,000$

1. Million Trillions

$1,000,000 \times 1,000,000, 000,000$

1. The fifth power of a million $= (1,000,000,000)^5$

### Quintillion in Math: Definition

A quintillion is a cardinal number used to represent 10 raised to the power of 18.

1 Quintillion $= 10^{18}$.

Alt tags: large numbers word forms

## One Quintillion: Place Value Chart

Since 1 quintillion $= 10^18$, you can see that all the places starting from the ones place to the hundred quadrillions place have the digit “0.” The quintillions place has the digit “1.”

Alt tag: Place value chart of a quintillion

• Twisting and turning the Rubik’s Cube results in unlimited permutations. The number of combinations of a Rubik’s Cube is 43,252,003,274,489,856,000 (about 43 Quintillions).
• The whole universe is about 68 quintillion times the size of Earth.
• The volume of Earth’s oceans is approximately 1.35 quintillion cubic meters.
• There are about 1.7 quintillion water molecules in one drop of water.
• There are about 10 quintillion insect species on the Earth.
• Our planet Earth has about 326 quintillion gallons of water.

## Conclusion

In this article, we learned about a large number “quintillion” along with its place values. Let’s solve a few examples and practice problems!

## Solved Examples on Quintillion

1. How many quintillions is $9,000,000 \times 5,000,000 \times 2,000,000$?

Solution:

$9,000,000 \times 5,000,000 \times 2,000,000 = 9 \times 10^6 \times 5 \times 10^6 \times 2 \times 10^6$

$= 90 \times 10^{18}$

$= 90,000,000,000,000,000,000$

We know that 1 quintillion is $10^{18}$ .

Hence, the given number 90,000,000,000,000,000,000 is 90 quintillions.

The product of the given numbers is 90 quintillions.

2. What is the value of 12 million times 8 trillion?

Solution:

$12$ millions $= 12 \times 10^6$

$8$ trillions $= 8 \times 10^12$

$\therefore 12$ million times 8 trillions $= 12 \times 10^6 \times 8 \times 10^{12}$

$= 96 \times 10^{18}$

$= 96$ quintillions

Hence, the value of 12 million times 8 trillion is 96 quintillions.

3. Convert 80 quintillion into billions.

Solution:

1 quintillion $= 1$ billion billions

$\therefore 80$ quintillions $= 80$ billion billions.

4. Convert 125 quintillion into millions.

Solution:

1 Quintillion $= 1$ Million Trillions

$\therefore 125$ Quintillions $= 125$ Million Trillions.

5.  What is 4 billion times 4 billion?

Solution:

4 billions $= 4 \times 10^9$

$\therefore 4$ billion times 4 billion $= 4 \times 10^9 \times 4 \times 10^9$

$= 16 \times 10^{18}$

$= 16$ Quintillion

Hence, the value of 4 billion times 4 billion is 16 quintillion.

## Practice Problems on Quintillion

1

### $7,000,000 \times 2,000,000 \times 3,000,000 =$ ?

35 quintillions
42 quintillions
45 quintillions
52 quintillions
CorrectIncorrect
The product of the given numbers is $42 \times 10^{18}$.
Since, we know that 1 quintillion is $10^{18}$.
Hence, the given number is 42 quintillions.
2

### One quintillion $=$

$10^{16}$
$10^{18}$
$10^{9}$
$10^{17}$
CorrectIncorrect
Correct answer is: $10^{18}$
1 quintillion is $10^{18}$.
3

### Convert 16 Quintillion into Billions.

16 billion billions
18 billion billions
20 billion billions
22 billion billions
CorrectIncorrect
Correct answer is: 16 billion billions
1 Quintillion $= 1$ billion billions
$\therefore 16$ Quintillions $= 16$ billion billions.
4

### The prefix _____ is used for representing quantities of quintillion.

mega
tera
giga
exa
CorrectIncorrect
The prefix “exa” is used to represent quintillion quantities.
5

### What is 10 Billion times 9 Billion?

90 Quintillion
100 Quintillion
95 Quintillion
900 Quintillion
CorrectIncorrect
10 billion $=10 \times 10^9$
9 billion $= 9 \times 10^9$
$\therefore 10$ billion times 9 billion $= 10 \times 10^9 \times 9 \times 10^9$
$= 90 \times 10^18$
$= 90$ quintillion
Hence, the value of 10 billion times 9 billion is 90 quintillion.
6

### 1 quintillion dollars $=$

$\$1,000,000,000,000,000,000$One billion billion dollars One million trillion dollars All of the above CorrectIncorrect Correct answer is: All of the above 1 quintillion dollars$= \$1,000,000,000,000,000,000 =$One billion billion dollars $=$ One million trillion dollars

## Frequently Asked Questions on Quintillion

No. Quintillion is $10^18$. Sextillion is $10^21$.

Objects as huge as celestial bodies, the entire milky way, and the galaxy, etc., can be measured using quintillion.

Zillion is not a specific number. It is an informal way of expressing a large number or a large quantity. It is slang confused with an actual number due to its similarity with the words “billion,” “million.”

Googol is a large number equivalent to $10^100$.