Q: What are the prime factors of the number 57,403,820?

 A: 2, 5, 1423, 2017

Why are those the prime factors of the number 57,403,820?

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 57,403,820

57,403,820
Factor Arrows
228,701,910
Factor Arrows
214,350,955
Factor Arrows
52,870,191
Factor Arrows
1,4232,017

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, 5, 1423, 2017

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 1,423 x 2,017 = 57,403,820

This can also be written as 22 x 51 x 1,4231 x 2,0171 = 57,403,820

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


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