Q: What are the prime factors of the number 255,325,610?

 A: 2, 5, 19, 31, 67, 647

Why are those the prime factors of the number 255,325,610?

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 255,325,610

255,325,610
Factor Arrows
2127,662,805
Factor Arrows
525,532,561
Factor Arrows
191,343,819
Factor Arrows
3143,349
Factor Arrows
67647

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, 5, 19, 31, 67, 647

We can check our work by multiplying all of the prime factors together: 2 x 5 x 19 x 31 x 67 x 647 = 255,325,610

This can also be written as 21 x 51 x 191 x 311 x 671 x 6471 = 255,325,610

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


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