Q: What are the prime factors of the number 119,290,224?

 A: 2, 3, 17, 29, 71

Why are those the prime factors of the number 119,290,224?

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 119,290,224

119,290,224
Factor Arrows
259,645,112
Factor Arrows
229,822,556
Factor Arrows
214,911,278
Factor Arrows
27,455,639
Factor Arrows
32,485,213
Factor Arrows
17146,189
Factor Arrows
295,041
Factor Arrows
7171

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, 17, 29, 71

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 29 x 71 x 71 = 119,290,224

This can also be written as 24 x 31 x 171 x 291 x 712 = 119,290,224

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


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