Q: What are the prime factors of the number 143,565,021?

 A: 3, 163, 32621

Why are those the prime factors of the number 143,565,021?

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 143,565,021

143,565,021
Factor Arrows
347,855,007
Factor Arrows
315,951,669
Factor Arrows
35,317,223
Factor Arrows
16332,621

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, 163, 32621

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 163 x 32,621 = 143,565,021

This can also be written as 33 x 1631 x 32,6211 = 143,565,021

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


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