Q: What are the prime factors of the number 211,213,312?

 A: 2, 206263

Why are those the prime factors of the number 211,213,312?

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 211,213,312

211,213,312
Factor Arrows
2105,606,656
Factor Arrows
252,803,328
Factor Arrows
226,401,664
Factor Arrows
213,200,832
Factor Arrows
26,600,416
Factor Arrows
23,300,208
Factor Arrows
21,650,104
Factor Arrows
2825,052
Factor Arrows
2412,526
Factor Arrows
2206,263

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, 206263

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 2 x 2 x 2 x 206,263 = 211,213,312

This can also be written as 210 x 206,2631 = 211,213,312

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


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