Q: What are the prime factors of the number 404,425,616?

 A: 2, 7, 53, 9733

Why are those the prime factors of the number 404,425,616?

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 404,425,616

404,425,616
Factor Arrows
2202,212,808
Factor Arrows
2101,106,404
Factor Arrows
250,553,202
Factor Arrows
225,276,601
Factor Arrows
73,610,943
Factor Arrows
7515,849
Factor Arrows
539,733

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, 7, 53, 9733

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 7 x 53 x 9,733 = 404,425,616

This can also be written as 24 x 72 x 531 x 9,7331 = 404,425,616

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


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