Q: What are the prime factors of the number 103,101,120?

 A: 2, 3, 5, 11933

Why are those the prime factors of the number 103,101,120?

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 103,101,120

103,101,120
Factor Arrows
251,550,560
Factor Arrows
225,775,280
Factor Arrows
212,887,640
Factor Arrows
26,443,820
Factor Arrows
23,221,910
Factor Arrows
21,610,955
Factor Arrows
3536,985
Factor Arrows
3178,995
Factor Arrows
359,665
Factor Arrows
511,933

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, 5, 11933

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 3 x 3 x 3 x 5 x 11,933 = 103,101,120

This can also be written as 26 x 33 x 51 x 11,9331 = 103,101,120

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


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