Q: What are the prime factors of the number 345,030,224?

 A: 2, 7, 11, 103, 2719

Why are those the prime factors of the number 345,030,224?

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 345,030,224

345,030,224
Factor Arrows
2172,515,112
Factor Arrows
286,257,556
Factor Arrows
243,128,778
Factor Arrows
221,564,389
Factor Arrows
73,080,627
Factor Arrows
11280,057
Factor Arrows
1032,719

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:

2, 7, 11, 103, 2719

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 11 x 103 x 2,719 = 345,030,224

This can also be written as 24 x 71 x 111 x 1031 x 2,7191 = 345,030,224

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


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