Q: What are the prime factors of the number 430,131,328?

 A: 2, 11, 41, 7451

Why are those the prime factors of the number 430,131,328?

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 430,131,328

430,131,328
Factor Arrows
2215,065,664
Factor Arrows
2107,532,832
Factor Arrows
253,766,416
Factor Arrows
226,883,208
Factor Arrows
213,441,604
Factor Arrows
26,720,802
Factor Arrows
23,360,401
Factor Arrows
11305,491
Factor Arrows
417,451

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, 11, 41, 7451

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 11 x 41 x 7,451 = 430,131,328

This can also be written as 27 x 111 x 411 x 7,4511 = 430,131,328

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


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