Q: What are the prime factors of the number 57,151,705?

 A: 5, 13, 17, 51721

Why are those the prime factors of the number 57,151,705?

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 57,151,705

57,151,705
Factor Arrows
511,430,341
Factor Arrows
13879,257
Factor Arrows
1751,721

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:

5, 13, 17, 51721

We can check our work by multiplying all of the prime factors together: 5 x 13 x 17 x 51,721 = 57,151,705

This can also be written as 51 x 131 x 171 x 51,7211 = 57,151,705

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


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