Q: What are the prime factors of the number 379,800?

 A: 2, 3, 5, 211

Why are those the prime factors of the number 379,800?

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 379,800

379,800
Factor Arrows
2189,900
Factor Arrows
294,950
Factor Arrows
247,475
Factor Arrows
315,825
Factor Arrows
35,275
Factor Arrows
51,055
Factor Arrows
5211

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, 5, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 5 x 211 = 379,800

This can also be written as 23 x 32 x 52 x 2111 = 379,800

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


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