Q: What is the prime factorization of the number 37,014,466?

 A:
  • The prime factors are: 2 x 2,011 x 9,203
    • or also written as { 2, 2,011, 9,203 }
  • Written in exponential form: 21 x 2,0111 x 9,2031

Why is the prime factorization of 37,014,466 written as 21 x 2,0111 x 9,2031?

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 37,014,466

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 37,014,466 by 2

37,014,466 ÷ 2 = 18,507,233 - No remainder! 2 is one of the factors!
18,507,233 ÷ 2 = 9,253,616.5 - There is a remainder. We can't divide by 2 evenly anymore. Let's try the next prime number
18,507,233 ÷ 3 = 6,169,077.6667 - This has a remainder. 3 is not a factor.
18,507,233 ÷ 5 = 3,701,446.6 - This has a remainder. 5 is not a factor.
18,507,233 ÷ 7 = 2,643,890.4286 - This has a remainder. 7 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
18,507,233 ÷ 2,011 = 9,203 - No remainder! 2,011 is one of the factors!
9,203 ÷ 2,011 = 4.5763 - There is a remainder. We can't divide by 2011 evenly anymore. Let's try the next prime number
9,203 ÷ 2,017 = 4.5627 - This has a remainder. 2,017 is not a factor.
9,203 ÷ 2,027 = 4.5402 - This has a remainder. 2,027 is not a factor.
9,203 ÷ 2,029 = 4.5357 - This has a remainder. 2,029 is not a factor.
...
Keep trying increasingly larger numbers until you find one that divides evenly.
...
9,203 ÷ 9,203 = 1 - No remainder! 9,203 is one of the factors!

The orange divisor(s) above are the prime factors of the number 37,014,466. If we put all of it together we have the factors 2 x 2,011 x 9,203 = 37,014,466. It can also be written in exponential form as 21 x 2,0111 x 9,2031.

Factor Tree

Another way to do prime factorization is to use a factor tree. Below is a factor tree for the number 37,014,466.

37,014,466
Factor Arrows
218,507,233
Factor Arrows
2,0119,203

More Prime Factorization Examples

37,014,46437,014,46537,014,46737,014,468
26 x 2111 x 2,741131 x 51 x 311 x 79,601171 x 371 x 2411 x 593122 x 31 x 2511 x 12,2891

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