Q: What are the prime factors of the number 38,393,568?

 A: 2, 3, 37, 1201

Why are those the prime factors of the number 38,393,568?

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 38,393,568

38,393,568
Factor Arrows
219,196,784
Factor Arrows
29,598,392
Factor Arrows
24,799,196
Factor Arrows
22,399,598
Factor Arrows
21,199,799
Factor Arrows
3399,933
Factor Arrows
3133,311
Factor Arrows
344,437
Factor Arrows
371,201

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, 37, 1201

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 37 x 1,201 = 38,393,568

This can also be written as 25 x 33 x 371 x 1,2011 = 38,393,568

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


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