Q: What are the prime factors of the number 13,503,205?

 A: 5, 19, 7481

Why are those the prime factors of the number 13,503,205?

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 13,503,205

13,503,205
Factor Arrows
52,700,641
Factor Arrows
19142,139
Factor Arrows
197,481

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:

5, 19, 7481

We can check our work by multiplying all of the prime factors together: 5 x 19 x 19 x 7,481 = 13,503,205

This can also be written as 51 x 192 x 7,4811 = 13,503,205

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


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