Q: What are the prime factors of the number 255,233,165?

 A: 5, 11, 43, 9811

Why are those the prime factors of the number 255,233,165?

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 255,233,165

255,233,165
Factor Arrows
551,046,633
Factor Arrows
114,640,603
Factor Arrows
11421,873
Factor Arrows
439,811

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, 11, 43, 9811

We can check our work by multiplying all of the prime factors together: 5 x 11 x 11 x 43 x 9,811 = 255,233,165

This can also be written as 51 x 112 x 431 x 9,8111 = 255,233,165

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


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