Q: What are the prime factors of the number 20,575,556?

 A: 2, 19, 14249

Why are those the prime factors of the number 20,575,556?

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 20,575,556

20,575,556
Factor Arrows
210,287,778
Factor Arrows
25,143,889
Factor Arrows
19270,731
Factor Arrows
1914,249

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, 19, 14249

We can check our work by multiplying all of the prime factors together: 2 x 2 x 19 x 19 x 14,249 = 20,575,556

This can also be written as 22 x 192 x 14,2491 = 20,575,556

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


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