Q: What are the prime factors of the number 13,563,213?

 A: 3, 29, 31, 47, 107

Why are those the prime factors of the number 13,563,213?

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 13,563,213

13,563,213
Factor Arrows
34,521,071
Factor Arrows
29155,899
Factor Arrows
315,029
Factor Arrows
47107

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, 29, 31, 47, 107

We can check our work by multiplying all of the prime factors together: 3 x 29 x 31 x 47 x 107 = 13,563,213

This can also be written as 31 x 291 x 311 x 471 x 1071 = 13,563,213

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


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