Q: What are the prime factors of the number 216,160,620?

 A: 2, 3, 5, 13, 97, 2857

Why are those the prime factors of the number 216,160,620?

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 216,160,620

216,160,620
Factor Arrows
2108,080,310
Factor Arrows
254,040,155
Factor Arrows
318,013,385
Factor Arrows
53,602,677
Factor Arrows
13277,129
Factor Arrows
972,857

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, 97, 2857

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 13 x 97 x 2,857 = 216,160,620

This can also be written as 22 x 31 x 51 x 131 x 971 x 2,8571 = 216,160,620

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


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