Q: What are the prime factors of the number 424,424,320?

 A: 2, 5, 663163

Why are those the prime factors of the number 424,424,320?

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 424,424,320

424,424,320
Factor Arrows
2212,212,160
Factor Arrows
2106,106,080
Factor Arrows
253,053,040
Factor Arrows
226,526,520
Factor Arrows
213,263,260
Factor Arrows
26,631,630
Factor Arrows
23,315,815
Factor Arrows
5663,163

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, 663163

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 5 x 663,163 = 424,424,320

This can also be written as 27 x 51 x 663,1631 = 424,424,320

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


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