Q: What are the prime factors of the number 57,046,272?

 A: 2, 3, 74279

Why are those the prime factors of the number 57,046,272?

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 57,046,272

57,046,272
Factor Arrows
228,523,136
Factor Arrows
214,261,568
Factor Arrows
27,130,784
Factor Arrows
23,565,392
Factor Arrows
21,782,696
Factor Arrows
2891,348
Factor Arrows
2445,674
Factor Arrows
2222,837
Factor Arrows
374,279

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, 74279

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 3 x 74,279 = 57,046,272

This can also be written as 28 x 31 x 74,2791 = 57,046,272

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


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