Q: What are the prime factors of the number 39,960,192?

 A: 2, 3, 19, 5477

Why are those the prime factors of the number 39,960,192?

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 39,960,192

39,960,192
Factor Arrows
219,980,096
Factor Arrows
29,990,048
Factor Arrows
24,995,024
Factor Arrows
22,497,512
Factor Arrows
21,248,756
Factor Arrows
2624,378
Factor Arrows
2312,189
Factor Arrows
3104,063
Factor Arrows
195,477

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, 19, 5477

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 19 x 5,477 = 39,960,192

This can also be written as 27 x 31 x 191 x 5,4771 = 39,960,192

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


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