Q: What is the prime factorization of the number 564,046,464?

 A:
  • The prime factors are: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 19 x 97 x 797
    • or also written as { 2, 2, 2, 2, 2, 2, 2, 3, 19, 97, 797 }
  • Written in exponential form: 27 x 31 x 191 x 971 x 7971

Why is the prime factorization of 564,046,464 written as 27 x 31 x 191 x 971 x 7971?

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 564,046,464

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 564,046,464 by 2

564,046,464 ÷ 2 = 282,023,232 - No remainder! 2 is one of the factors!
282,023,232 ÷ 2 = 141,011,616 - No remainder! 2 is one of the factors!
141,011,616 ÷ 2 = 70,505,808 - No remainder! 2 is one of the factors!
70,505,808 ÷ 2 = 35,252,904 - No remainder! 2 is one of the factors!
35,252,904 ÷ 2 = 17,626,452 - No remainder! 2 is one of the factors!
17,626,452 ÷ 2 = 8,813,226 - No remainder! 2 is one of the factors!
8,813,226 ÷ 2 = 4,406,613 - No remainder! 2 is one of the factors!
4,406,613 ÷ 2 = 2,203,306.5 - There is a remainder. We can't divide by 2 evenly anymore. Let's try the next prime number
4,406,613 ÷ 3 = 1,468,871 - No remainder! 3 is one of the factors!
1,468,871 ÷ 3 = 489,623.6667 - There is a remainder. We can't divide by 3 evenly anymore. Let's try the next prime number
1,468,871 ÷ 5 = 293,774.2 - This has a remainder. 5 is not a factor.
1,468,871 ÷ 7 = 209,838.7143 - This has a remainder. 7 is not a factor.
1,468,871 ÷ 11 = 133,533.7273 - This has a remainder. 11 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
1,468,871 ÷ 19 = 77,309 - No remainder! 19 is one of the factors!
77,309 ÷ 19 = 4,068.8947 - There is a remainder. We can't divide by 19 evenly anymore. Let's try the next prime number
77,309 ÷ 23 = 3,361.2609 - This has a remainder. 23 is not a factor.
77,309 ÷ 29 = 2,665.8276 - This has a remainder. 29 is not a factor.
77,309 ÷ 31 = 2,493.8387 - This has a remainder. 31 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
77,309 ÷ 97 = 797 - No remainder! 97 is one of the factors!
797 ÷ 97 = 8.2165 - There is a remainder. We can't divide by 97 evenly anymore. Let's try the next prime number
797 ÷ 101 = 7.8911 - This has a remainder. 101 is not a factor.
797 ÷ 103 = 7.7379 - This has a remainder. 103 is not a factor.
797 ÷ 107 = 7.4486 - This has a remainder. 107 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
797 ÷ 797 = 1 - No remainder! 797 is one of the factors!

The orange divisor(s) above are the prime factors of the number 564,046,464. 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 3 x 19 x 97 x 797 = 564,046,464. It can also be written in exponential form as 27 x 31 x 191 x 971 x 7971.

Factor Tree

Another way to do prime factorization is to use a factor tree. Below is a factor tree for the number 564,046,464.

564,046,464
Factor Arrows
2282,023,232
Factor Arrows
2141,011,616
Factor Arrows
270,505,808
Factor Arrows
235,252,904
Factor Arrows
217,626,452
Factor Arrows
28,813,226
Factor Arrows
24,406,613
Factor Arrows
31,468,871
Factor Arrows
1977,309
Factor Arrows
97797

More Prime Factorization Examples

564,046,462564,046,463564,046,465564,046,466
21 x 71 x 291 x 1,389,2771371 x 2691 x 56,671151 x 2291 x 492,617121 x 2111 x 1,336,6031

Try the factor calculator

Explore more about the number 564,046,464:


Ask a Question