Q: What are the prime factors of the number 38,928,768?

 A: 2, 3, 101377

Why are those the prime factors of the number 38,928,768?

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 38,928,768

38,928,768
Factor Arrows
219,464,384
Factor Arrows
29,732,192
Factor Arrows
24,866,096
Factor Arrows
22,433,048
Factor Arrows
21,216,524
Factor Arrows
2608,262
Factor Arrows
2304,131
Factor Arrows
3101,377

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, 101377

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 101,377 = 38,928,768

This can also be written as 27 x 31 x 101,3771 = 38,928,768

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


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