Q: What are the prime factors of the number 57,031,456?

 A: 2, 137, 13009

Why are those the prime factors of the number 57,031,456?

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 57,031,456

57,031,456
Factor Arrows
228,515,728
Factor Arrows
214,257,864
Factor Arrows
27,128,932
Factor Arrows
23,564,466
Factor Arrows
21,782,233
Factor Arrows
13713,009

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, 137, 13009

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 137 x 13,009 = 57,031,456

This can also be written as 25 x 1371 x 13,0091 = 57,031,456

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


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