Q: What are the prime factors of the number 305,526,135?

 A: 3, 5, 23, 71, 12473

Why are those the prime factors of the number 305,526,135?

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 305,526,135

305,526,135
Factor Arrows
3101,842,045
Factor Arrows
520,368,409
Factor Arrows
23885,583
Factor Arrows
7112,473

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, 23, 71, 12473

We can check our work by multiplying all of the prime factors together: 3 x 5 x 23 x 71 x 12,473 = 305,526,135

This can also be written as 31 x 51 x 231 x 711 x 12,4731 = 305,526,135

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


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