Q: What are the prime factors of the number 400,512,069?

 A: 3, 29, 229, 6701

Why are those the prime factors of the number 400,512,069?

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 400,512,069

400,512,069
Factor Arrows
3133,504,023
Factor Arrows
344,501,341
Factor Arrows
291,534,529
Factor Arrows
2296,701

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:

3, 29, 229, 6701

We can check our work by multiplying all of the prime factors together: 3 x 3 x 29 x 229 x 6,701 = 400,512,069

This can also be written as 32 x 291 x 2291 x 6,7011 = 400,512,069

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


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