Q: What are the prime factors of the number 57,985,416?

 A: 2, 3, 19, 71, 199

Why are those the prime factors of the number 57,985,416?

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 57,985,416

57,985,416
Factor Arrows
228,992,708
Factor Arrows
214,496,354
Factor Arrows
27,248,177
Factor Arrows
32,416,059
Factor Arrows
3805,353
Factor Arrows
3268,451
Factor Arrows
1914,129
Factor Arrows
71199

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, 19, 71, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 19 x 71 x 199 = 57,985,416

This can also be written as 23 x 33 x 191 x 711 x 1991 = 57,985,416

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


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