Q: What are the prime factors of the number 211,815,567?

 A: 3, 139, 6271

Why are those the prime factors of the number 211,815,567?

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 211,815,567

211,815,567
Factor Arrows
370,605,189
Factor Arrows
323,535,063
Factor Arrows
37,845,021
Factor Arrows
32,615,007
Factor Arrows
3871,669
Factor Arrows
1396,271

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:

3, 139, 6271

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 139 x 6,271 = 211,815,567

This can also be written as 35 x 1391 x 6,2711 = 211,815,567

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


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