Q: What are the prime factors of the number 474,368?

 A: 2, 17, 109

Why are those the prime factors of the number 474,368?

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 474,368

474,368
Factor Arrows
2237,184
Factor Arrows
2118,592
Factor Arrows
259,296
Factor Arrows
229,648
Factor Arrows
214,824
Factor Arrows
27,412
Factor Arrows
23,706
Factor Arrows
21,853
Factor Arrows
17109

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, 17, 109

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 17 x 109 = 474,368

This can also be written as 28 x 171 x 1091 = 474,368

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


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