Q: What are the prime factors of the number 170,470,413?

 A: 3, 19, 257, 431

Why are those the prime factors of the number 170,470,413?

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 170,470,413

170,470,413
Factor Arrows
356,823,471
Factor Arrows
318,941,157
Factor Arrows
36,313,719
Factor Arrows
32,104,573
Factor Arrows
19110,767
Factor Arrows
257431

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:

3, 19, 257, 431

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 19 x 257 x 431 = 170,470,413

This can also be written as 34 x 191 x 2571 x 4311 = 170,470,413

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


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