Q: What are the prime factors of the number 211,212,320?

 A: 2, 5, 11, 41, 2927

Why are those the prime factors of the number 211,212,320?

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 211,212,320

211,212,320
Factor Arrows
2105,606,160
Factor Arrows
252,803,080
Factor Arrows
226,401,540
Factor Arrows
213,200,770
Factor Arrows
26,600,385
Factor Arrows
51,320,077
Factor Arrows
11120,007
Factor Arrows
412,927

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, 5, 11, 41, 2927

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 11 x 41 x 2,927 = 211,212,320

This can also be written as 25 x 51 x 111 x 411 x 2,9271 = 211,212,320

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


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