Q: What are the prime factors of the number 543,674,208?

 A: 2, 3, 7, 11, 19, 79

Why are those the prime factors of the number 543,674,208?

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 543,674,208

543,674,208
Factor Arrows
2271,837,104
Factor Arrows
2135,918,552
Factor Arrows
267,959,276
Factor Arrows
233,979,638
Factor Arrows
216,989,819
Factor Arrows
35,663,273
Factor Arrows
7809,039
Factor Arrows
7115,577
Factor Arrows
716,511
Factor Arrows
111,501
Factor Arrows
1979

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, 3, 7, 11, 19, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 7 x 7 x 11 x 19 x 79 = 543,674,208

This can also be written as 25 x 31 x 73 x 111 x 191 x 791 = 543,674,208

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


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