Q: What are the prime factors of the number 211,151,104?

 A: 2, 19, 43411

Why are those the prime factors of the number 211,151,104?

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 211,151,104

211,151,104
Factor Arrows
2105,575,552
Factor Arrows
252,787,776
Factor Arrows
226,393,888
Factor Arrows
213,196,944
Factor Arrows
26,598,472
Factor Arrows
23,299,236
Factor Arrows
21,649,618
Factor Arrows
2824,809
Factor Arrows
1943,411

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, 19, 43411

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 19 x 43,411 = 211,151,104

This can also be written as 28 x 191 x 43,4111 = 211,151,104

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


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