Q: What are the prime factors of the number 18,670,032?

 A: 2, 3, 317, 409

Why are those the prime factors of the number 18,670,032?

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 18,670,032

18,670,032
Factor Arrows
29,335,016
Factor Arrows
24,667,508
Factor Arrows
22,333,754
Factor Arrows
21,166,877
Factor Arrows
3388,959
Factor Arrows
3129,653
Factor Arrows
317409

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, 317, 409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 317 x 409 = 18,670,032

This can also be written as 24 x 32 x 3171 x 4091 = 18,670,032

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


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