Q: What are the prime factors of the number 3,855,744?

 A: 2, 3, 3347

Why are those the prime factors of the number 3,855,744?

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 3,855,744

3,855,744
Factor Arrows
21,927,872
Factor Arrows
2963,936
Factor Arrows
2481,968
Factor Arrows
2240,984
Factor Arrows
2120,492
Factor Arrows
260,246
Factor Arrows
230,123
Factor Arrows
310,041
Factor Arrows
33,347

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, 3347

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 3 x 3,347 = 3,855,744

This can also be written as 27 x 32 x 3,3471 = 3,855,744

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


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