Q: What are the prime factors of the number 381,727,488?

 A: 2, 3, 497041

Why are those the prime factors of the number 381,727,488?

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 381,727,488

381,727,488
Factor Arrows
2190,863,744
Factor Arrows
295,431,872
Factor Arrows
247,715,936
Factor Arrows
223,857,968
Factor Arrows
211,928,984
Factor Arrows
25,964,492
Factor Arrows
22,982,246
Factor Arrows
21,491,123
Factor Arrows
3497,041

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, 497041

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 497,041 = 381,727,488

This can also be written as 28 x 31 x 497,0411 = 381,727,488

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


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