Q: What are the prime factors of the number 917,568?

 A: 2, 3, 59

Why are those the prime factors of the number 917,568?

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 917,568

917,568
Factor Arrows
2458,784
Factor Arrows
2229,392
Factor Arrows
2114,696
Factor Arrows
257,348
Factor Arrows
228,674
Factor Arrows
214,337
Factor Arrows
34,779
Factor Arrows
31,593
Factor Arrows
3531
Factor Arrows
3177
Factor Arrows
359

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, 59

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 3 x 3 x 3 x 3 x 3 x 59 = 917,568

This can also be written as 26 x 35 x 591 = 917,568

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


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