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!

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.

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.

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: $1 \times 10^{18}$

2. A million million millions 

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

3. Billion Billions 

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

4. Million Trillions

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

5. 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 $= 10^{18}$.

Place Values: Million, Billion, Trillion, Quadrillion, Quintillion

Place	Number	Number of zeros
Ones	1	0
Tens	10	1
Hundreds	100	2
Thousands	1,000	3
Ten Thousands	10,000	4
Hundred Thousands	100,000	5
Million	1,000,000	6
Ten Millions	10,00,0000	7
Hundred Millions	100,000,000	8
Billion	1,000,000,000	9
Ten Billions	10,000,000,000	10
Hundred Billions	100,000,000,000	11
Trillion	1,000,000,000,000	12
Ten Trillions	10,000,000,000,000	13
Hundred Trillions	100,000,000,000,000	14
Quadrillion	1,000,000,000,000,000	15
Ten Quadrillions	10,000,000,000,000,000	16
Hundred Quadrillions	100,000,000,000,000,000	17
Quintillion	1,000,000,000,000,000,000	18

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.”

Ones	0
Tens	0
Hundreds	0
Thousands	0
Ten Thousands	0
Hundred Thousands	0
Million	0
Ten Millions	0
Hundred Millions	0
Billion	0
Ten Billions	0
Hundred Billions	0
Trillion	0
Ten Trillions	0
Hundred Trillions	0
Quadrillion	0
Ten Quadrillions	0
Hundred Quadrillions	0
Quintillion	1

Facts about Quintillion

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

Frequently Asked Questions on Quintillion