Q: What are the prime factors of the number 397,088?

 A: 2, 12409

Why are those the prime factors of the number 397,088?

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 397,088

397,088
Factor Arrows
2198,544
Factor Arrows
299,272
Factor Arrows
249,636
Factor Arrows
224,818
Factor Arrows
212,409

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, 12409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 12,409 = 397,088

This can also be written as 25 x 12,4091 = 397,088

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


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