Q: What are the prime factors of the number 211,632,512?

 A: 2, 7, 13, 18169

Why are those the prime factors of the number 211,632,512?

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 211,632,512

211,632,512
Factor Arrows
2105,816,256
Factor Arrows
252,908,128
Factor Arrows
226,454,064
Factor Arrows
213,227,032
Factor Arrows
26,613,516
Factor Arrows
23,306,758
Factor Arrows
21,653,379
Factor Arrows
7236,197
Factor Arrows
1318,169

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, 7, 13, 18169

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 13 x 18,169 = 211,632,512

This can also be written as 27 x 71 x 131 x 18,1691 = 211,632,512

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


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