Q: What are the prime factors of the number 2,031,744?

 A: 2, 3, 11, 13, 37

Why are those the prime factors of the number 2,031,744?

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 2,031,744

2,031,744
Factor Arrows
21,015,872
Factor Arrows
2507,936
Factor Arrows
2253,968
Factor Arrows
2126,984
Factor Arrows
263,492
Factor Arrows
231,746
Factor Arrows
215,873
Factor Arrows
35,291
Factor Arrows
11481
Factor Arrows
1337

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, 11, 13, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 11 x 13 x 37 = 2,031,744

This can also be written as 27 x 31 x 111 x 131 x 371 = 2,031,744

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


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