Q: What is the prime factorization of the number 59,045,053?

 A:
  • The prime factors are: 2,213 x 26,681
    • or also written as { 2,213, 26,681 }
  • Written in exponential form: 2,2131 x 26,6811

Why is the prime factorization of 59,045,053 written as 2,2131 x 26,6811?

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 59,045,053

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 59,045,053 by 2

59,045,053 ÷ 2 = 29,522,526.5 - This has a remainder. Let's try another prime number.
59,045,053 ÷ 3 = 19,681,684.3333 - This has a remainder. Let's try another prime number.
59,045,053 ÷ 5 = 11,809,010.6 - This has a remainder. Let's try another prime number.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
59,045,053 ÷ 2,213 = 26,681 - No remainder! 2,213 is one of the factors!
26,681 ÷ 2,213 = 12.0565 - There is a remainder. We can't divide by 2213 evenly anymore. Let's try the next prime number
26,681 ÷ 2,221 = 12.0131 - This has a remainder. 2,221 is not a factor.
26,681 ÷ 2,237 = 11.9271 - This has a remainder. 2,237 is not a factor.
26,681 ÷ 2,239 = 11.9165 - This has a remainder. 2,239 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
26,681 ÷ 26,681 = 1 - No remainder! 26,681 is one of the factors!

The orange divisor(s) above are the prime factors of the number 59,045,053. If we put all of it together we have the factors 2,213 x 26,681 = 59,045,053. It can also be written in exponential form as 2,2131 x 26,6811.

Factor Tree

Another way to do prime factorization is to use a factor tree. Below is a factor tree for the number 59,045,053.

59,045,053
Factor Arrows
2,21326,681

More Prime Factorization Examples

59,045,05159,045,05259,045,05459,045,055
132 x 349,379122 x 31 x 111 x 447,311121 x 3171 x 93,131131 x 51 x 9371 x 4,2011

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