Q: What are the prime factors of the number 57,236,224?

 A: 2, 47, 67, 71

Why are those the prime factors of the number 57,236,224?

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 57,236,224

57,236,224
Factor Arrows
228,618,112
Factor Arrows
214,309,056
Factor Arrows
27,154,528
Factor Arrows
23,577,264
Factor Arrows
21,788,632
Factor Arrows
2894,316
Factor Arrows
2447,158
Factor Arrows
2223,579
Factor Arrows
474,757
Factor Arrows
6771

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, 47, 67, 71

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 2 x 47 x 67 x 71 = 57,236,224

This can also be written as 28 x 471 x 671 x 711 = 57,236,224

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


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