Q: What are the prime factors of the number 216,128,286?

 A: 2, 3, 11, 23, 47459

Why are those the prime factors of the number 216,128,286?

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 216,128,286

216,128,286
Factor Arrows
2108,064,143
Factor Arrows
336,021,381
Factor Arrows
312,007,127
Factor Arrows
111,091,557
Factor Arrows
2347,459

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, 23, 47459

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 23 x 47,459 = 216,128,286

This can also be written as 21 x 32 x 111 x 231 x 47,4591 = 216,128,286

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


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