Q: What are the prime factors of the number 101,021,310?

 A: 2, 3, 5, 13, 17, 1693

Why are those the prime factors of the number 101,021,310?

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 101,021,310

101,021,310
Factor Arrows
250,510,655
Factor Arrows
316,836,885
Factor Arrows
35,612,295
Factor Arrows
31,870,765
Factor Arrows
5374,153
Factor Arrows
1328,781
Factor Arrows
171,693

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, 17, 1693

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 13 x 17 x 1,693 = 101,021,310

This can also be written as 21 x 33 x 51 x 131 x 171 x 1,6931 = 101,021,310

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


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