Q: What are the prime factors of the number 800,568,400?

 A: 2, 5, 2001421

Why are those the prime factors of the number 800,568,400?

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 800,568,400

800,568,400
Factor Arrows
2400,284,200
Factor Arrows
2200,142,100
Factor Arrows
2100,071,050
Factor Arrows
250,035,525
Factor Arrows
510,007,105
Factor Arrows
52,001,421

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, 5, 2001421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 2,001,421 = 800,568,400

This can also be written as 24 x 52 x 2,001,4211 = 800,568,400

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


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