Q: What are the prime factors of the number 672,446,544?

 A: 2, 3, 7, 11, 31, 5869

Why are those the prime factors of the number 672,446,544?

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 672,446,544

672,446,544
Factor Arrows
2336,223,272
Factor Arrows
2168,111,636
Factor Arrows
284,055,818
Factor Arrows
242,027,909
Factor Arrows
314,009,303
Factor Arrows
72,001,329
Factor Arrows
11181,939
Factor Arrows
315,869

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, 31, 5869

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 11 x 31 x 5,869 = 672,446,544

This can also be written as 24 x 31 x 71 x 111 x 311 x 5,8691 = 672,446,544

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


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