Q: What are the prime factors of the number 340,448?

 A: 2, 10639

Why are those the prime factors of the number 340,448?

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 340,448

340,448
Factor Arrows
2170,224
Factor Arrows
285,112
Factor Arrows
242,556
Factor Arrows
221,278
Factor Arrows
210,639

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, 10639

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 10,639 = 340,448

This can also be written as 25 x 10,6391 = 340,448

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


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