Q: What are the prime factors of the number 57,146,784?

 A: 2, 3, 41, 14519

Why are those the prime factors of the number 57,146,784?

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 57,146,784

57,146,784
Factor Arrows
228,573,392
Factor Arrows
214,286,696
Factor Arrows
27,143,348
Factor Arrows
23,571,674
Factor Arrows
21,785,837
Factor Arrows
3595,279
Factor Arrows
4114,519

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, 41, 14519

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 41 x 14,519 = 57,146,784

This can also be written as 25 x 31 x 411 x 14,5191 = 57,146,784

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


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