Q: What are the prime factors of the number 824,387,408?

 A: 2, 13, 29, 10513

Why are those the prime factors of the number 824,387,408?

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 824,387,408

824,387,408
Factor Arrows
2412,193,704
Factor Arrows
2206,096,852
Factor Arrows
2103,048,426
Factor Arrows
251,524,213
Factor Arrows
133,963,401
Factor Arrows
13304,877
Factor Arrows
2910,513

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, 13, 29, 10513

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 13 x 29 x 10,513 = 824,387,408

This can also be written as 24 x 132 x 291 x 10,5131 = 824,387,408

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


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