Q: What are the prime factors of the number 256,225,775?

 A: 5, 13, 788387

Why are those the prime factors of the number 256,225,775?

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 256,225,775

256,225,775
Factor Arrows
551,245,155
Factor Arrows
510,249,031
Factor Arrows
13788,387

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:

5, 13, 788387

We can check our work by multiplying all of the prime factors together: 5 x 5 x 13 x 788,387 = 256,225,775

This can also be written as 52 x 131 x 788,3871 = 256,225,775

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


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