Q: What are the prime factors of the number 205,426,429?

 A: 13, 31, 113, 347

Why are those the prime factors of the number 205,426,429?

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 205,426,429

205,426,429
Factor Arrows
1315,802,033
Factor Arrows
131,215,541
Factor Arrows
3139,211
Factor Arrows
113347

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:

13, 31, 113, 347

We can check our work by multiplying all of the prime factors together: 13 x 13 x 31 x 113 x 347 = 205,426,429

This can also be written as 132 x 311 x 1131 x 3471 = 205,426,429

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


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