Q: What are the prime factors of the number 606,316,725?

 A: 3, 5, 7, 128321

Why are those the prime factors of the number 606,316,725?

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 606,316,725

606,316,725
Factor Arrows
3202,105,575
Factor Arrows
367,368,525
Factor Arrows
322,456,175
Factor Arrows
54,491,235
Factor Arrows
5898,247
Factor Arrows
7128,321

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, 5, 7, 128321

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 7 x 128,321 = 606,316,725

This can also be written as 33 x 52 x 71 x 128,3211 = 606,316,725

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


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