Q: What are the prime factors of the number 380,448?

 A: 2, 3, 1321

Why are those the prime factors of the number 380,448?

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 380,448

380,448
Factor Arrows
2190,224
Factor Arrows
295,112
Factor Arrows
247,556
Factor Arrows
223,778
Factor Arrows
211,889
Factor Arrows
33,963
Factor Arrows
31,321

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, 1321

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 1,321 = 380,448

This can also be written as 25 x 32 x 1,3211 = 380,448

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


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