Q: What are the prime factors of the number 100,896?

 A: 2, 3, 1051

Why are those the prime factors of the number 100,896?

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 100,896

100,896
Factor Arrows
250,448
Factor Arrows
225,224
Factor Arrows
212,612
Factor Arrows
26,306
Factor Arrows
23,153
Factor Arrows
31,051

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, 3, 1051

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 1,051 = 100,896

This can also be written as 25 x 31 x 1,0511 = 100,896

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


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