Q: What are the prime factors of the number 316,784?

 A: 2, 13, 1523

Why are those the prime factors of the number 316,784?

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 316,784

316,784
Factor Arrows
2158,392
Factor Arrows
279,196
Factor Arrows
239,598
Factor Arrows
219,799
Factor Arrows
131,523

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, 13, 1523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 1,523 = 316,784

This can also be written as 24 x 131 x 1,5231 = 316,784

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


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