Q: What are the prime factors of the number 221,063,513?

 A: 11, 41, 47, 10429

Why are those the prime factors of the number 221,063,513?

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 221,063,513

221,063,513
Factor Arrows
1120,096,683
Factor Arrows
41490,163
Factor Arrows
4710,429

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:

11, 41, 47, 10429

We can check our work by multiplying all of the prime factors together: 11 x 41 x 47 x 10,429 = 221,063,513

This can also be written as 111 x 411 x 471 x 10,4291 = 221,063,513

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


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