Q: What are the prime factors of the number 543,443,320?

 A: 2, 5, 7, 19, 14593

Why are those the prime factors of the number 543,443,320?

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 543,443,320

543,443,320
Factor Arrows
2271,721,660
Factor Arrows
2135,860,830
Factor Arrows
267,930,415
Factor Arrows
513,586,083
Factor Arrows
71,940,869
Factor Arrows
7277,267
Factor Arrows
1914,593

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, 7, 19, 14593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 7 x 19 x 14,593 = 543,443,320

This can also be written as 23 x 51 x 72 x 191 x 14,5931 = 543,443,320

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


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