Q: What are the prime factors of the number 205,504,161?

 A: 3, 53, 127, 10177

Why are those the prime factors of the number 205,504,161?

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 205,504,161

205,504,161
Factor Arrows
368,501,387
Factor Arrows
531,292,479
Factor Arrows
12710,177

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, 53, 127, 10177

We can check our work by multiplying all of the prime factors together: 3 x 53 x 127 x 10,177 = 205,504,161

This can also be written as 31 x 531 x 1271 x 10,1771 = 205,504,161

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


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