Q: What are the prime factors of the number 440,351,470?

 A: 2, 5, 13, 67, 3889

Why are those the prime factors of the number 440,351,470?

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 440,351,470

440,351,470
Factor Arrows
2220,175,735
Factor Arrows
544,035,147
Factor Arrows
133,387,319
Factor Arrows
13260,563
Factor Arrows
673,889

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, 13, 67, 3889

We can check our work by multiplying all of the prime factors together: 2 x 5 x 13 x 13 x 67 x 3,889 = 440,351,470

This can also be written as 21 x 51 x 132 x 671 x 3,8891 = 440,351,470

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


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