Q: What are the prime factors of the number 100,704,396?

 A: 2, 3, 13, 17, 23, 127

Why are those the prime factors of the number 100,704,396?

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 100,704,396

100,704,396
Factor Arrows
250,352,198
Factor Arrows
225,176,099
Factor Arrows
38,392,033
Factor Arrows
13645,541
Factor Arrows
1349,657
Factor Arrows
172,921
Factor Arrows
23127

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, 13, 17, 23, 127

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 13 x 17 x 23 x 127 = 100,704,396

This can also be written as 22 x 31 x 132 x 171 x 231 x 1271 = 100,704,396

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


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