Q: What are the prime factors of the number 265,515,021?

 A: 3, 191, 154459

Why are those the prime factors of the number 265,515,021?

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 265,515,021

265,515,021
Factor Arrows
388,505,007
Factor Arrows
329,501,669
Factor Arrows
191154,459

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, 191, 154459

We can check our work by multiplying all of the prime factors together: 3 x 3 x 191 x 154,459 = 265,515,021

This can also be written as 32 x 1911 x 154,4591 = 265,515,021

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


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