Q: What are the prime factors of the number 18,856,384?

 A: 2, 37, 7963

Why are those the prime factors of the number 18,856,384?

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 18,856,384

18,856,384
Factor Arrows
29,428,192
Factor Arrows
24,714,096
Factor Arrows
22,357,048
Factor Arrows
21,178,524
Factor Arrows
2589,262
Factor Arrows
2294,631
Factor Arrows
377,963

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, 37, 7963

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 37 x 7,963 = 18,856,384

This can also be written as 26 x 371 x 7,9631 = 18,856,384

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


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