Q: What are the prime factors of the number 231,113,412?

 A: 2, 3, 29, 911

Why are those the prime factors of the number 231,113,412?

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 231,113,412

231,113,412
Factor Arrows
2115,556,706
Factor Arrows
257,778,353
Factor Arrows
319,259,451
Factor Arrows
36,419,817
Factor Arrows
32,139,939
Factor Arrows
3713,313
Factor Arrows
3237,771
Factor Arrows
379,257
Factor Arrows
326,419
Factor Arrows
29911

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, 29, 911

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 29 x 911 = 231,113,412

This can also be written as 22 x 37 x 291 x 9111 = 231,113,412

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


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