Q: What are the prime factors of the number 258,258,811?

 A: 19, 61, 443, 503

Why are those the prime factors of the number 258,258,811?

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 258,258,811

258,258,811
Factor Arrows
1913,592,569
Factor Arrows
61222,829
Factor Arrows
443503

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:

19, 61, 443, 503

We can check our work by multiplying all of the prime factors together: 19 x 61 x 443 x 503 = 258,258,811

This can also be written as 191 x 611 x 4431 x 5031 = 258,258,811

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


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