Q: What are the prime factors of the number 891,176?

 A: 2, 11, 13, 19, 41

Why are those the prime factors of the number 891,176?

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 891,176

891,176
Factor Arrows
2445,588
Factor Arrows
2222,794
Factor Arrows
2111,397
Factor Arrows
1110,127
Factor Arrows
13779
Factor Arrows
1941

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, 11, 13, 19, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 13 x 19 x 41 = 891,176

This can also be written as 23 x 111 x 131 x 191 x 411 = 891,176

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


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