Q: What are the prime factors of the number 101,223,705?

 A: 3, 5, 11, 61, 89, 113

Why are those the prime factors of the number 101,223,705?

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 101,223,705

101,223,705
Factor Arrows
333,741,235
Factor Arrows
56,748,247
Factor Arrows
11613,477
Factor Arrows
6110,057
Factor Arrows
89113

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:

3, 5, 11, 61, 89, 113

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 61 x 89 x 113 = 101,223,705

This can also be written as 31 x 51 x 111 x 611 x 891 x 1131 = 101,223,705

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


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