Q: What are the prime factors of the number 275,724,513?

 A: 3, 17, 47, 12781

Why are those the prime factors of the number 275,724,513?

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 275,724,513

275,724,513
Factor Arrows
391,908,171
Factor Arrows
330,636,057
Factor Arrows
310,212,019
Factor Arrows
17600,707
Factor Arrows
4712,781

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, 17, 47, 12781

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 17 x 47 x 12,781 = 275,724,513

This can also be written as 33 x 171 x 471 x 12,7811 = 275,724,513

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


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