Q: What are the prime factors of the number 57,429?

 A: 3, 709

Why are those the prime factors of the number 57,429?

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 57,429

57,429
Factor Arrows
319,143
Factor Arrows
36,381
Factor Arrows
32,127
Factor Arrows
3709

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, 709

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 709 = 57,429

This can also be written as 34 x 7091 = 57,429

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


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