Q: What are the prime factors of the number 515,241?

 A: 3, 6361

Why are those the prime factors of the number 515,241?

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 515,241

515,241
Factor Arrows
3171,747
Factor Arrows
357,249
Factor Arrows
319,083
Factor Arrows
36,361

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, 6361

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 6,361 = 515,241

This can also be written as 34 x 6,3611 = 515,241

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


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