Q: What are the prime factors of the number 101,011,328?

 A: 2, 11, 71741

Why are those the prime factors of the number 101,011,328?

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 101,011,328

101,011,328
Factor Arrows
250,505,664
Factor Arrows
225,252,832
Factor Arrows
212,626,416
Factor Arrows
26,313,208
Factor Arrows
23,156,604
Factor Arrows
21,578,302
Factor Arrows
2789,151
Factor Arrows
1171,741

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, 11, 71741

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 11 x 71,741 = 101,011,328

This can also be written as 27 x 111 x 71,7411 = 101,011,328

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


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