Q: What are the prime factors of the number 265,157,523?

 A: 3, 71, 138319

Why are those the prime factors of the number 265,157,523?

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 265,157,523

265,157,523
Factor Arrows
388,385,841
Factor Arrows
329,461,947
Factor Arrows
39,820,649
Factor Arrows
71138,319

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, 71, 138319

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 71 x 138,319 = 265,157,523

This can also be written as 33 x 711 x 138,3191 = 265,157,523

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


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