Q: What are the prime factors of the number 216,346,350?

 A: 2, 3, 5, 11, 19, 67, 103

Why are those the prime factors of the number 216,346,350?

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 216,346,350

216,346,350
Factor Arrows
2108,173,175
Factor Arrows
336,057,725
Factor Arrows
57,211,545
Factor Arrows
51,442,309
Factor Arrows
11131,119
Factor Arrows
196,901
Factor Arrows
67103

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, 11, 19, 67, 103

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 11 x 19 x 67 x 103 = 216,346,350

This can also be written as 21 x 31 x 52 x 111 x 191 x 671 x 1031 = 216,346,350

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


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