Q: What are the prime factors of the number 258,577,641?

 A: 3, 7, 433, 9479

Why are those the prime factors of the number 258,577,641?

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 258,577,641

258,577,641
Factor Arrows
386,192,547
Factor Arrows
328,730,849
Factor Arrows
74,104,407
Factor Arrows
4339,479

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, 7, 433, 9479

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 433 x 9,479 = 258,577,641

This can also be written as 32 x 71 x 4331 x 9,4791 = 258,577,641

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


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