Q: What are the prime factors of the number 321,475,260?

 A: 2, 3, 5, 41, 130681

Why are those the prime factors of the number 321,475,260?

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 321,475,260

321,475,260
Factor Arrows
2160,737,630
Factor Arrows
280,368,815
Factor Arrows
326,789,605
Factor Arrows
55,357,921
Factor Arrows
41130,681

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, 5, 41, 130681

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 41 x 130,681 = 321,475,260

This can also be written as 22 x 31 x 51 x 411 x 130,6811 = 321,475,260

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


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