Q: What are the prime factors of the number 219,072,360?

 A: 2, 3, 5, 13, 317, 443

Why are those the prime factors of the number 219,072,360?

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 219,072,360

219,072,360
Factor Arrows
2109,536,180
Factor Arrows
254,768,090
Factor Arrows
227,384,045
Factor Arrows
39,128,015
Factor Arrows
51,825,603
Factor Arrows
13140,431
Factor Arrows
317443

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, 5, 13, 317, 443

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 13 x 317 x 443 = 219,072,360

This can also be written as 23 x 31 x 51 x 131 x 3171 x 4431 = 219,072,360

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


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