Q: What are the prime factors of the number 205,233,020?

 A: 2, 5, 31, 47, 7043

Why are those the prime factors of the number 205,233,020?

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 205,233,020

205,233,020
Factor Arrows
2102,616,510
Factor Arrows
251,308,255
Factor Arrows
510,261,651
Factor Arrows
31331,021
Factor Arrows
477,043

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:

2, 5, 31, 47, 7043

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 31 x 47 x 7,043 = 205,233,020

This can also be written as 22 x 51 x 311 x 471 x 7,0431 = 205,233,020

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


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