Q: What are the prime factors of the number 101,151,855?

 A: 3, 5, 7, 29, 3691

Why are those the prime factors of the number 101,151,855?

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 101,151,855

101,151,855
Factor Arrows
333,717,285
Factor Arrows
311,239,095
Factor Arrows
33,746,365
Factor Arrows
5749,273
Factor Arrows
7107,039
Factor Arrows
293,691

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, 7, 29, 3691

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 7 x 29 x 3,691 = 101,151,855

This can also be written as 33 x 51 x 71 x 291 x 3,6911 = 101,151,855

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


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