Q: What are the prime factors of the number 403,043,004?

 A: 2, 3, 7, 13, 17, 7237

Why are those the prime factors of the number 403,043,004?

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 403,043,004

403,043,004
Factor Arrows
2201,521,502
Factor Arrows
2100,760,751
Factor Arrows
333,586,917
Factor Arrows
311,195,639
Factor Arrows
71,599,377
Factor Arrows
13123,029
Factor Arrows
177,237

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, 13, 17, 7237

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 13 x 17 x 7,237 = 403,043,004

This can also be written as 22 x 32 x 71 x 131 x 171 x 7,2371 = 403,043,004

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


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