Q: What is the prime factorization of the number 4,750,523?

 A:
  • The prime factors are: 593 x 8,011
    • or also written as { 593, 8,011 }
  • Written in exponential form: 5931 x 8,0111

Why is the prime factorization of 4,750,523 written as 5931 x 8,0111?

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 4,750,523

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 4,750,523 by 2

4,750,523 ÷ 2 = 2,375,261.5 - This has a remainder. Let's try another prime number.
4,750,523 ÷ 3 = 1,583,507.6667 - This has a remainder. Let's try another prime number.
4,750,523 ÷ 5 = 950,104.6 - This has a remainder. Let's try another prime number.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
4,750,523 ÷ 593 = 8,011 - No remainder! 593 is one of the factors!
8,011 ÷ 593 = 13.5093 - There is a remainder. We can't divide by 593 evenly anymore. Let's try the next prime number
8,011 ÷ 599 = 13.374 - This has a remainder. 599 is not a factor.
8,011 ÷ 601 = 13.3295 - This has a remainder. 601 is not a factor.
8,011 ÷ 607 = 13.1977 - This has a remainder. 607 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
8,011 ÷ 8,011 = 1 - No remainder! 8,011 is one of the factors!

The orange divisor(s) above are the prime factors of the number 4,750,523. If we put all of it together we have the factors 593 x 8,011 = 4,750,523. It can also be written in exponential form as 5931 x 8,0111.

Factor Tree

Another way to do prime factorization is to use a factor tree. Below is a factor tree for the number 4,750,523.

4,750,523
Factor Arrows
5938,011

More Prime Factorization Examples

4,750,5214,750,5224,750,5244,750,525
31 x 5411 x 2,927121 x 71 x 339,323122 x 32 x 131,959152 x 131 x 471 x 3111

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