Q: What are the prime factors of the number 430,320,320?

 A: 2, 5, 17, 79103

Why are those the prime factors of the number 430,320,320?

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 430,320,320

430,320,320
Factor Arrows
2215,160,160
Factor Arrows
2107,580,080
Factor Arrows
253,790,040
Factor Arrows
226,895,020
Factor Arrows
213,447,510
Factor Arrows
26,723,755
Factor Arrows
51,344,751
Factor Arrows
1779,103

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, 5, 17, 79103

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 5 x 17 x 79,103 = 430,320,320

This can also be written as 26 x 51 x 171 x 79,1031 = 430,320,320

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


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