Q: What are the prime factors of the number 211,522,653?

 A: 3, 17, 1382501

Why are those the prime factors of the number 211,522,653?

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 211,522,653

211,522,653
Factor Arrows
370,507,551
Factor Arrows
323,502,517
Factor Arrows
171,382,501

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, 17, 1382501

We can check our work by multiplying all of the prime factors together: 3 x 3 x 17 x 1,382,501 = 211,522,653

This can also be written as 32 x 171 x 1,382,5011 = 211,522,653

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


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