Q: What are the prime factors of the number 219,609,192?

 A: 2, 3, 11, 47, 1609

Why are those the prime factors of the number 219,609,192?

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 219,609,192

219,609,192
Factor Arrows
2109,804,596
Factor Arrows
254,902,298
Factor Arrows
227,451,149
Factor Arrows
39,150,383
Factor Arrows
11831,853
Factor Arrows
1175,623
Factor Arrows
471,609

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, 3, 11, 47, 1609

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 11 x 47 x 1,609 = 219,609,192

This can also be written as 23 x 31 x 112 x 471 x 1,6091 = 219,609,192

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


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