Q: What are the prime factors of the number 168,069,904?

 A: 2, 139, 75571

Why are those the prime factors of the number 168,069,904?

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 168,069,904

168,069,904
Factor Arrows
284,034,952
Factor Arrows
242,017,476
Factor Arrows
221,008,738
Factor Arrows
210,504,369
Factor Arrows
13975,571

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, 139, 75571

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 139 x 75,571 = 168,069,904

This can also be written as 24 x 1391 x 75,5711 = 168,069,904

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


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