Q: What are the prime factors of the number 211,332,253?

 A: 11, 17, 53, 21323

Why are those the prime factors of the number 211,332,253?

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 211,332,253

211,332,253
Factor Arrows
1119,212,023
Factor Arrows
171,130,119
Factor Arrows
5321,323

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:

11, 17, 53, 21323

We can check our work by multiplying all of the prime factors together: 11 x 17 x 53 x 21,323 = 211,332,253

This can also be written as 111 x 171 x 531 x 21,3231 = 211,332,253

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


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