Q: What are the prime factors of the number 19,667,180?

 A: 2, 5, 13, 67, 1129

Why are those the prime factors of the number 19,667,180?

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 19,667,180

19,667,180
Factor Arrows
29,833,590
Factor Arrows
24,916,795
Factor Arrows
5983,359
Factor Arrows
1375,643
Factor Arrows
671,129

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, 5, 13, 67, 1129

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 67 x 1,129 = 19,667,180

This can also be written as 22 x 51 x 131 x 671 x 1,1291 = 19,667,180

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


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