Q: What is the prime factorization of the number 52,227,616?

 A:
  • The prime factors are: 2 x 2 x 2 x 2 x 2 x 7 x 233,159
    • or also written as { 2, 2, 2, 2, 2, 7, 233,159 }
  • Written in exponential form: 25 x 71 x 233,1591

Why is the prime factorization of 52,227,616 written as 25 x 71 x 233,1591?

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 52,227,616

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 52,227,616 by 2

52,227,616 ÷ 2 = 26,113,808 - No remainder! 2 is one of the factors!
26,113,808 ÷ 2 = 13,056,904 - No remainder! 2 is one of the factors!
13,056,904 ÷ 2 = 6,528,452 - No remainder! 2 is one of the factors!
6,528,452 ÷ 2 = 3,264,226 - No remainder! 2 is one of the factors!
3,264,226 ÷ 2 = 1,632,113 - No remainder! 2 is one of the factors!
1,632,113 ÷ 2 = 816,056.5 - There is a remainder. We can't divide by 2 evenly anymore. Let's try the next prime number
1,632,113 ÷ 3 = 544,037.6667 - This has a remainder. 3 is not a factor.
1,632,113 ÷ 5 = 326,422.6 - This has a remainder. 5 is not a factor.
1,632,113 ÷ 7 = 233,159 - No remainder! 7 is one of the factors!
233,159 ÷ 7 = 33,308.4286 - There is a remainder. We can't divide by 7 evenly anymore. Let's try the next prime number
233,159 ÷ 11 = 21,196.2727 - This has a remainder. 11 is not a factor.
233,159 ÷ 13 = 17,935.3077 - This has a remainder. 13 is not a factor.
233,159 ÷ 17 = 13,715.2353 - This has a remainder. 17 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
233,159 ÷ 233,159 = 1 - No remainder! 233,159 is one of the factors!

The orange divisor(s) above are the prime factors of the number 52,227,616. If we put all of it together we have the factors 2 x 2 x 2 x 2 x 2 x 7 x 233,159 = 52,227,616. It can also be written in exponential form as 25 x 71 x 233,1591.

Factor Tree

Another way to do prime factorization is to use a factor tree. Below is a factor tree for the number 52,227,616.

52,227,616
Factor Arrows
226,113,808
Factor Arrows
213,056,904
Factor Arrows
26,528,452
Factor Arrows
23,264,226
Factor Arrows
21,632,113
Factor Arrows
7233,159

More Prime Factorization Examples

52,227,61452,227,61552,227,61752,227,618
21 x 26,113,807131 x 51 x 111 x 316,5311131 x 4,017,509121 x 31 x 191 x 231 x 19,9191

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