Q: What are the prime factors of the number 205,112,331?

 A: 3, 29, 3011

Why are those the prime factors of the number 205,112,331?

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 205,112,331

205,112,331
Factor Arrows
368,370,777
Factor Arrows
322,790,259
Factor Arrows
37,596,753
Factor Arrows
32,532,251
Factor Arrows
2987,319
Factor Arrows
293,011

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, 29, 3011

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 29 x 29 x 3,011 = 205,112,331

This can also be written as 34 x 292 x 3,0111 = 205,112,331

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


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