Q: What are the prime factors of the number 19,328,475?

 A: 3, 5, 257713

Why are those the prime factors of the number 19,328,475?

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 19,328,475

19,328,475
Factor Arrows
36,442,825
Factor Arrows
51,288,565
Factor Arrows
5257,713

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, 257713

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 257,713 = 19,328,475

This can also be written as 31 x 52 x 257,7131 = 19,328,475

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


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