Q: What are the prime factors of the number 205,452,338?

 A: 2, 7, 13, 631, 1789

Why are those the prime factors of the number 205,452,338?

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 205,452,338

205,452,338
Factor Arrows
2102,726,169
Factor Arrows
714,675,167
Factor Arrows
131,128,859
Factor Arrows
6311,789

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, 7, 13, 631, 1789

We can check our work by multiplying all of the prime factors together: 2 x 7 x 13 x 631 x 1,789 = 205,452,338

This can also be written as 21 x 71 x 131 x 6311 x 1,7891 = 205,452,338

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


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