Q: What are the prime factors of the number 400,464,825?

 A: 3, 5, 79, 67589

Why are those the prime factors of the number 400,464,825?

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 400,464,825

400,464,825
Factor Arrows
3133,488,275
Factor Arrows
526,697,655
Factor Arrows
55,339,531
Factor Arrows
7967,589

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, 5, 79, 67589

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 79 x 67,589 = 400,464,825

This can also be written as 31 x 52 x 791 x 67,5891 = 400,464,825

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


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