Q: What are the prime factors of the number 5,087,205?

 A: 3, 5, 53, 79

Why are those the prime factors of the number 5,087,205?

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 5,087,205

5,087,205
Factor Arrows
31,695,735
Factor Arrows
3565,245
Factor Arrows
3188,415
Factor Arrows
362,805
Factor Arrows
320,935
Factor Arrows
54,187
Factor Arrows
5379

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, 53, 79

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 53 x 79 = 5,087,205

This can also be written as 35 x 51 x 531 x 791 = 5,087,205

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


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