Q: What are the prime factors of the number 380,528?

 A: 2, 17, 1399

Why are those the prime factors of the number 380,528?

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 380,528

380,528
Factor Arrows
2190,264
Factor Arrows
295,132
Factor Arrows
247,566
Factor Arrows
223,783
Factor Arrows
171,399

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, 17, 1399

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 17 x 1,399 = 380,528

This can also be written as 24 x 171 x 1,3991 = 380,528

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


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