Q: What are the prime factors of the number 321,104,316?

 A: 2, 3, 13, 53, 71, 547

Why are those the prime factors of the number 321,104,316?

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 321,104,316

321,104,316
Factor Arrows
2160,552,158
Factor Arrows
280,276,079
Factor Arrows
326,758,693
Factor Arrows
132,058,361
Factor Arrows
5338,837
Factor Arrows
71547

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, 53, 71, 547

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 53 x 71 x 547 = 321,104,316

This can also be written as 22 x 31 x 131 x 531 x 711 x 5471 = 321,104,316

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


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