Q: What are the prime factors of the number 311,230,225?

 A: 5, 617, 20177

Why are those the prime factors of the number 311,230,225?

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 311,230,225

311,230,225
Factor Arrows
562,246,045
Factor Arrows
512,449,209
Factor Arrows
61720,177

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, 617, 20177

We can check our work by multiplying all of the prime factors together: 5 x 5 x 617 x 20,177 = 311,230,225

This can also be written as 52 x 6171 x 20,1771 = 311,230,225

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


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