Q: What are the prime factors of the number 769,392?

 A: 2, 3, 13, 137

Why are those the prime factors of the number 769,392?

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 769,392

769,392
Factor Arrows
2384,696
Factor Arrows
2192,348
Factor Arrows
296,174
Factor Arrows
248,087
Factor Arrows
316,029
Factor Arrows
35,343
Factor Arrows
31,781
Factor Arrows
13137

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, 3, 13, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 13 x 137 = 769,392

This can also be written as 24 x 33 x 131 x 1371 = 769,392

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


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