Q: What are the prime factors of the number 2,131,488?

 A: 2, 3, 2467

Why are those the prime factors of the number 2,131,488?

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 2,131,488

2,131,488
Factor Arrows
21,065,744
Factor Arrows
2532,872
Factor Arrows
2266,436
Factor Arrows
2133,218
Factor Arrows
266,609
Factor Arrows
322,203
Factor Arrows
37,401
Factor Arrows
32,467

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, 2467

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 3 x 3 x 2,467 = 2,131,488

This can also be written as 25 x 33 x 2,4671 = 2,131,488

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


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