Q: What are the prime factors of the number 20,658,099?

 A: 3, 7, 11, 37, 2417

Why are those the prime factors of the number 20,658,099?

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 20,658,099

20,658,099
Factor Arrows
36,886,033
Factor Arrows
7983,719
Factor Arrows
1189,429
Factor Arrows
372,417

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, 7, 11, 37, 2417

We can check our work by multiplying all of the prime factors together: 3 x 7 x 11 x 37 x 2,417 = 20,658,099

This can also be written as 31 x 71 x 111 x 371 x 2,4171 = 20,658,099

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


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