Q: What are the prime factors of the number 19,670,952?

 A: 2, 3, 7, 43, 389

Why are those the prime factors of the number 19,670,952?

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 19,670,952

19,670,952
Factor Arrows
29,835,476
Factor Arrows
24,917,738
Factor Arrows
22,458,869
Factor Arrows
3819,623
Factor Arrows
7117,089
Factor Arrows
716,727
Factor Arrows
43389

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, 7, 43, 389

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 7 x 43 x 389 = 19,670,952

This can also be written as 23 x 31 x 72 x 431 x 3891 = 19,670,952

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


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