Q: What are the prime factors of the number 20,543,212?

 A: 2, 307, 16729

Why are those the prime factors of the number 20,543,212?

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 20,543,212

20,543,212
Factor Arrows
210,271,606
Factor Arrows
25,135,803
Factor Arrows
30716,729

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, 307, 16729

We can check our work by multiplying all of the prime factors together: 2 x 2 x 307 x 16,729 = 20,543,212

This can also be written as 22 x 3071 x 16,7291 = 20,543,212

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


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