Q: What are the prime factors of the number 221,030,327?

 A: 7, 151, 29873

Why are those the prime factors of the number 221,030,327?

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 221,030,327

221,030,327
Factor Arrows
731,575,761
Factor Arrows
74,510,823
Factor Arrows
15129,873

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:

7, 151, 29873

We can check our work by multiplying all of the prime factors together: 7 x 7 x 151 x 29,873 = 221,030,327

This can also be written as 72 x 1511 x 29,8731 = 221,030,327

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


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