Q: What are the prime factors of the number 320,210,352?

 A: 2, 3, 7, 11, 28879

Why are those the prime factors of the number 320,210,352?

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 320,210,352

320,210,352
Factor Arrows
2160,105,176
Factor Arrows
280,052,588
Factor Arrows
240,026,294
Factor Arrows
220,013,147
Factor Arrows
36,671,049
Factor Arrows
32,223,683
Factor Arrows
7317,669
Factor Arrows
1128,879

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, 7, 11, 28879

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 7 x 11 x 28,879 = 320,210,352

This can also be written as 24 x 32 x 71 x 111 x 28,8791 = 320,210,352

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


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