Q: What are the prime factors of the number 409,192?

 A: 2, 7, 7307

Why are those the prime factors of the number 409,192?

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 409,192

409,192
Factor Arrows
2204,596
Factor Arrows
2102,298
Factor Arrows
251,149
Factor Arrows
77,307

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, 7, 7307

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7,307 = 409,192

This can also be written as 23 x 71 x 7,3071 = 409,192

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


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