Q: What are the prime factors of the number 100,610,560?

 A: 2, 5, 39301

Why are those the prime factors of the number 100,610,560?

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 100,610,560

100,610,560
Factor Arrows
250,305,280
Factor Arrows
225,152,640
Factor Arrows
212,576,320
Factor Arrows
26,288,160
Factor Arrows
23,144,080
Factor Arrows
21,572,040
Factor Arrows
2786,020
Factor Arrows
2393,010
Factor Arrows
2196,505
Factor Arrows
539,301

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, 5, 39301

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 2 x 2 x 5 x 39,301 = 100,610,560

This can also be written as 29 x 51 x 39,3011 = 100,610,560

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


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