Q: What are the prime factors of the number 238,491,344?

 A: 2, 7, 13, 19, 37, 233

Why are those the prime factors of the number 238,491,344?

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 238,491,344

238,491,344
Factor Arrows
2119,245,672
Factor Arrows
259,622,836
Factor Arrows
229,811,418
Factor Arrows
214,905,709
Factor Arrows
72,129,387
Factor Arrows
13163,799
Factor Arrows
198,621
Factor Arrows
37233

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, 7, 13, 19, 37, 233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 13 x 19 x 37 x 233 = 238,491,344

This can also be written as 24 x 71 x 131 x 191 x 371 x 2331 = 238,491,344

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


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