Q: What are the prime factors of the number 392,072?

 A: 2, 49009

Why are those the prime factors of the number 392,072?

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 392,072

392,072
Factor Arrows
2196,036
Factor Arrows
298,018
Factor Arrows
249,009

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, 49009

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 49,009 = 392,072

This can also be written as 23 x 49,0091 = 392,072

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


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