Q: What are the prime factors of the number 2,708,316?

 A: 2, 3, 13, 643

Why are those the prime factors of the number 2,708,316?

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 2,708,316

2,708,316
Factor Arrows
21,354,158
Factor Arrows
2677,079
Factor Arrows
3225,693
Factor Arrows
375,231
Factor Arrows
325,077
Factor Arrows
38,359
Factor Arrows
13643

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, 643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 13 x 643 = 2,708,316

This can also be written as 22 x 34 x 131 x 6431 = 2,708,316

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


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