Q: What are the prime factors of the number 406,056?

 A: 2, 3, 7, 2417

Why are those the prime factors of the number 406,056?

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 406,056

406,056
Factor Arrows
2203,028
Factor Arrows
2101,514
Factor Arrows
250,757
Factor Arrows
316,919
Factor Arrows
72,417

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, 7, 2417

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 2,417 = 406,056

This can also be written as 23 x 31 x 71 x 2,4171 = 406,056

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


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