Q: What are the prime factors of the number 20,986,212?

 A: 2, 3, 13, 23, 5849

Why are those the prime factors of the number 20,986,212?

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 20,986,212

20,986,212
Factor Arrows
210,493,106
Factor Arrows
25,246,553
Factor Arrows
31,748,851
Factor Arrows
13134,527
Factor Arrows
235,849

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, 3, 13, 23, 5849

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 23 x 5,849 = 20,986,212

This can also be written as 22 x 31 x 131 x 231 x 5,8491 = 20,986,212

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


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