Q: What are the prime factors of the number 225,273,345?

 A: 3, 5, 11, 43, 31751

Why are those the prime factors of the number 225,273,345?

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 225,273,345

225,273,345
Factor Arrows
375,091,115
Factor Arrows
515,018,223
Factor Arrows
111,365,293
Factor Arrows
4331,751

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, 5, 11, 43, 31751

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 43 x 31,751 = 225,273,345

This can also be written as 31 x 51 x 111 x 431 x 31,7511 = 225,273,345

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


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