Q: What are the prime factors of the number 231,451,584?

 A: 2, 3, 7, 13, 1019

Why are those the prime factors of the number 231,451,584?

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 231,451,584

231,451,584
Factor Arrows
2115,725,792
Factor Arrows
257,862,896
Factor Arrows
228,931,448
Factor Arrows
214,465,724
Factor Arrows
27,232,862
Factor Arrows
23,616,431
Factor Arrows
31,205,477
Factor Arrows
7172,211
Factor Arrows
1313,247
Factor Arrows
131,019

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, 7, 13, 1019

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 3 x 7 x 13 x 13 x 1,019 = 231,451,584

This can also be written as 26 x 31 x 71 x 132 x 1,0191 = 231,451,584

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


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