Q: What are the prime factors of the number 115,311,460?

 A: 2, 5, 11, 227, 2309

Why are those the prime factors of the number 115,311,460?

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 115,311,460

115,311,460
Factor Arrows
257,655,730
Factor Arrows
228,827,865
Factor Arrows
55,765,573
Factor Arrows
11524,143
Factor Arrows
2272,309

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, 11, 227, 2309

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 227 x 2,309 = 115,311,460

This can also be written as 22 x 51 x 111 x 2271 x 2,3091 = 115,311,460

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


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