Q: What are the prime factors of the number 321,040,032?

 A: 2, 3, 1607, 2081

Why are those the prime factors of the number 321,040,032?

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 321,040,032

321,040,032
Factor Arrows
2160,520,016
Factor Arrows
280,260,008
Factor Arrows
240,130,004
Factor Arrows
220,065,002
Factor Arrows
210,032,501
Factor Arrows
33,344,167
Factor Arrows
1,6072,081

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, 1607, 2081

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 1,607 x 2,081 = 321,040,032

This can also be written as 25 x 31 x 1,6071 x 2,0811 = 321,040,032

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


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