Q: What are the prime factors of the number 211,349,760?

 A: 2, 3, 5, 23, 2393

Why are those the prime factors of the number 211,349,760?

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 211,349,760

211,349,760
Factor Arrows
2105,674,880
Factor Arrows
252,837,440
Factor Arrows
226,418,720
Factor Arrows
213,209,360
Factor Arrows
26,604,680
Factor Arrows
23,302,340
Factor Arrows
21,651,170
Factor Arrows
2825,585
Factor Arrows
3275,195
Factor Arrows
555,039
Factor Arrows
232,393

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, 5, 23, 2393

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 3 x 5 x 23 x 2,393 = 211,349,760

This can also be written as 28 x 31 x 51 x 231 x 2,3931 = 211,349,760

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


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