Q: What are the prime factors of the number 375,840?

 A: 2, 3, 5, 29

Why are those the prime factors of the number 375,840?

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 375,840

375,840
Factor Arrows
2187,920
Factor Arrows
293,960
Factor Arrows
246,980
Factor Arrows
223,490
Factor Arrows
211,745
Factor Arrows
33,915
Factor Arrows
31,305
Factor Arrows
3435
Factor Arrows
3145
Factor Arrows
529

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, 29

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 3 x 3 x 5 x 29 = 375,840

This can also be written as 25 x 34 x 51 x 291 = 375,840

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


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