Q: What are the prime factors of the number 211,263,360?

 A: 2, 3, 5, 7, 11, 1429

Why are those the prime factors of the number 211,263,360?

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 211,263,360

211,263,360
Factor Arrows
2105,631,680
Factor Arrows
252,815,840
Factor Arrows
226,407,920
Factor Arrows
213,203,960
Factor Arrows
26,601,980
Factor Arrows
23,300,990
Factor Arrows
21,650,495
Factor Arrows
3550,165
Factor Arrows
5110,033
Factor Arrows
715,719
Factor Arrows
111,429

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, 7, 11, 1429

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 3 x 5 x 7 x 11 x 1,429 = 211,263,360

This can also be written as 27 x 31 x 51 x 71 x 111 x 1,4291 = 211,263,360

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


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