Q: What are the prime factors of the number 38,857,401?

 A: 3, 11, 14537

Why are those the prime factors of the number 38,857,401?

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 38,857,401

38,857,401
Factor Arrows
312,952,467
Factor Arrows
34,317,489
Factor Arrows
31,439,163
Factor Arrows
3479,721
Factor Arrows
3159,907
Factor Arrows
1114,537

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:

3, 11, 14537

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 11 x 14,537 = 38,857,401

This can also be written as 35 x 111 x 14,5371 = 38,857,401

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


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