Q: What are the prime factors of the number 400,460,553?

 A: 3, 59, 73, 10331

Why are those the prime factors of the number 400,460,553?

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 400,460,553

400,460,553
Factor Arrows
3133,486,851
Factor Arrows
344,495,617
Factor Arrows
59754,163
Factor Arrows
7310,331

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, 59, 73, 10331

We can check our work by multiplying all of the prime factors together: 3 x 3 x 59 x 73 x 10,331 = 400,460,553

This can also be written as 32 x 591 x 731 x 10,3311 = 400,460,553

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


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