Q: What are the prime factors of the number 258,575,031?

 A: 3, 11, 13, 193, 347

Why are those the prime factors of the number 258,575,031?

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 258,575,031

258,575,031
Factor Arrows
386,191,677
Factor Arrows
328,730,559
Factor Arrows
39,576,853
Factor Arrows
11870,623
Factor Arrows
1366,971
Factor Arrows
193347

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, 11, 13, 193, 347

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 11 x 13 x 193 x 347 = 258,575,031

This can also be written as 33 x 111 x 131 x 1931 x 3471 = 258,575,031

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


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