Q: What are the prime factors of the number 465,728?

 A: 2, 19, 383

Why are those the prime factors of the number 465,728?

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 465,728

465,728
Factor Arrows
2232,864
Factor Arrows
2116,432
Factor Arrows
258,216
Factor Arrows
229,108
Factor Arrows
214,554
Factor Arrows
27,277
Factor Arrows
19383

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, 19, 383

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 19 x 383 = 465,728

This can also be written as 26 x 191 x 3831 = 465,728

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


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