Q: What is the prime factorization of the number 60,084,736?

 A:
  • The prime factors are: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 117,353
    • or also written as { 2, 2, 2, 2, 2, 2, 2, 2, 2, 117,353 }
  • Written in exponential form: 29 x 117,3531

Why is the prime factorization of 60,084,736 written as 29 x 117,3531?

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 60,084,736

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 60,084,736 by 2

60,084,736 ÷ 2 = 30,042,368 - No remainder! 2 is one of the factors!
30,042,368 ÷ 2 = 15,021,184 - No remainder! 2 is one of the factors!
15,021,184 ÷ 2 = 7,510,592 - No remainder! 2 is one of the factors!
7,510,592 ÷ 2 = 3,755,296 - No remainder! 2 is one of the factors!
3,755,296 ÷ 2 = 1,877,648 - No remainder! 2 is one of the factors!
1,877,648 ÷ 2 = 938,824 - No remainder! 2 is one of the factors!
938,824 ÷ 2 = 469,412 - No remainder! 2 is one of the factors!
469,412 ÷ 2 = 234,706 - No remainder! 2 is one of the factors!
234,706 ÷ 2 = 117,353 - No remainder! 2 is one of the factors!
117,353 ÷ 2 = 58,676.5 - There is a remainder. We can't divide by 2 evenly anymore. Let's try the next prime number
117,353 ÷ 3 = 39,117.6667 - This has a remainder. 3 is not a factor.
117,353 ÷ 5 = 23,470.6 - This has a remainder. 5 is not a factor.
117,353 ÷ 7 = 16,764.7143 - This has a remainder. 7 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
117,353 ÷ 117,353 = 1 - No remainder! 117,353 is one of the factors!

The orange divisor(s) above are the prime factors of the number 60,084,736. If we put all of it together we have the factors 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 117,353 = 60,084,736. It can also be written in exponential form as 29 x 117,3531.

Factor Tree

Another way to do prime factorization is to use a factor tree. Below is a factor tree for the number 60,084,736.

60,084,736
Factor Arrows
230,042,368
Factor Arrows
215,021,184
Factor Arrows
27,510,592
Factor Arrows
23,755,296
Factor Arrows
21,877,648
Factor Arrows
2938,824
Factor Arrows
2469,412
Factor Arrows
2234,706
Factor Arrows
2117,353

More Prime Factorization Examples

60,084,73460,084,73560,084,73760,084,738
21 x 1631 x 184,309131 x 51 x 4,005,649160,084,737121 x 32 x 71 x 476,8631

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