Q: What is the prime factorization of the number 14,570,010?

 A:
  • The prime factors are: 2 x 3 x 3 x 3 x 5 x 7 x 13 x 593
    • or also written as { 2, 3, 3, 3, 5, 7, 13, 593 }
  • Written in exponential form: 21 x 33 x 51 x 71 x 131 x 5931

Why is the prime factorization of 14,570,010 written as 21 x 33 x 51 x 71 x 131 x 5931?

What is prime factorization?

Prime factorization or prime factor decomposition is the process of finding which prime numbers can be multiplied together to make the original number.

Finding the prime factors of 14,570,010

To find the prime factors, you start by dividing the number by the first prime number, which is 2. If there is not a remainder, meaning you can divide evenly, then 2 is a factor of the number. Continue dividing by 2 until you cannot divide evenly anymore. Write down how many 2's you were able to divide by evenly. Now try dividing by the next prime factor, which is 3. The goal is to get to a quotient of 1.

If it doesn't make sense yet, let's try it...

Here are the first several prime factors: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29...

Let's start by dividing 14,570,010 by 2

14,570,010 ÷ 2 = 7,285,005 - No remainder! 2 is one of the factors!
7,285,005 ÷ 2 = 3,642,502.5 - There is a remainder. We can't divide by 2 evenly anymore. Let's try the next prime number
7,285,005 ÷ 3 = 2,428,335 - No remainder! 3 is one of the factors!
2,428,335 ÷ 3 = 809,445 - No remainder! 3 is one of the factors!
809,445 ÷ 3 = 269,815 - No remainder! 3 is one of the factors!
269,815 ÷ 3 = 89,938.3333 - There is a remainder. We can't divide by 3 evenly anymore. Let's try the next prime number
269,815 ÷ 5 = 53,963 - No remainder! 5 is one of the factors!
53,963 ÷ 5 = 10,792.6 - There is a remainder. We can't divide by 5 evenly anymore. Let's try the next prime number
53,963 ÷ 7 = 7,709 - No remainder! 7 is one of the factors!
7,709 ÷ 7 = 1,101.2857 - There is a remainder. We can't divide by 7 evenly anymore. Let's try the next prime number
7,709 ÷ 11 = 700.8182 - This has a remainder. 11 is not a factor.
7,709 ÷ 13 = 593 - No remainder! 13 is one of the factors!
593 ÷ 13 = 45.6154 - There is a remainder. We can't divide by 13 evenly anymore. Let's try the next prime number
593 ÷ 17 = 34.8824 - This has a remainder. 17 is not a factor.
593 ÷ 19 = 31.2105 - This has a remainder. 19 is not a factor.
593 ÷ 23 = 25.7826 - This has a remainder. 23 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
593 ÷ 593 = 1 - No remainder! 593 is one of the factors!

The orange divisor(s) above are the prime factors of the number 14,570,010. If we put all of it together we have the factors 2 x 3 x 3 x 3 x 5 x 7 x 13 x 593 = 14,570,010. It can also be written in exponential form as 21 x 33 x 51 x 71 x 131 x 5931.

Factor Tree

Another way to do prime factorization is to use a factor tree. Below is a factor tree for the number 14,570,010.

14,570,010
Factor Arrows
27,285,005
Factor Arrows
32,428,335
Factor Arrows
3809,445
Factor Arrows
3269,815
Factor Arrows
553,963
Factor Arrows
77,709
Factor Arrows
13593

More Prime Factorization Examples

14,570,00814,570,00914,570,01114,570,012
23 x 371 x 49,22312,2671 x 6,42712931 x 49,727122 x 891 x 40,9271

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