Q: What are the prime factors of the number 211,152,216?

 A: 2, 3, 11, 101, 7919

Why are those the prime factors of the number 211,152,216?

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 211,152,216

211,152,216
Factor Arrows
2105,576,108
Factor Arrows
252,788,054
Factor Arrows
226,394,027
Factor Arrows
38,798,009
Factor Arrows
11799,819
Factor Arrows
1017,919

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, 11, 101, 7919

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 101 x 7,919 = 211,152,216

This can also be written as 23 x 31 x 111 x 1011 x 7,9191 = 211,152,216

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


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