Q: What are the prime factors of the number 101,305,608?

 A: 2, 3, 67, 251

Why are those the prime factors of the number 101,305,608?

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 101,305,608

101,305,608
Factor Arrows
250,652,804
Factor Arrows
225,326,402
Factor Arrows
212,663,201
Factor Arrows
34,221,067
Factor Arrows
6763,001
Factor Arrows
251251

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, 67, 251

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 67 x 251 x 251 = 101,305,608

This can also be written as 23 x 31 x 671 x 2512 = 101,305,608

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


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