Q: What are the prime factors of the number 445,165,056?

 A: 2, 3, 7, 37, 373

Why are those the prime factors of the number 445,165,056?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 445,165,056

445,165,056
Factor Arrows
2222,582,528
Factor Arrows
2111,291,264
Factor Arrows
255,645,632
Factor Arrows
227,822,816
Factor Arrows
213,911,408
Factor Arrows
26,955,704
Factor Arrows
23,477,852
Factor Arrows
21,738,926
Factor Arrows
2869,463
Factor Arrows
3289,821
Factor Arrows
396,607
Factor Arrows
713,801
Factor Arrows
37373

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 37, 373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 37 x 373 = 445,165,056

This can also be written as 29 x 32 x 71 x 371 x 3731 = 445,165,056

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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