Q: What are the prime factors of the number 380,534?

 A: 2, 7, 11, 353

Why are those the prime factors of the number 380,534?

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 380,534

380,534
Factor Arrows
2190,267
Factor Arrows
727,181
Factor Arrows
73,883
Factor Arrows
11353

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, 11, 353

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 11 x 353 = 380,534

This can also be written as 21 x 72 x 111 x 3531 = 380,534

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


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