Q: What are the prime factors of the number 57,056,727?

 A: 3, 7, 13, 73, 409

Why are those the prime factors of the number 57,056,727?

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 57,056,727

57,056,727
Factor Arrows
319,018,909
Factor Arrows
72,716,987
Factor Arrows
7388,141
Factor Arrows
1329,857
Factor Arrows
73409

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:

3, 7, 13, 73, 409

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 13 x 73 x 409 = 57,056,727

This can also be written as 31 x 72 x 131 x 731 x 4091 = 57,056,727

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


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