Q: What are the prime factors of the number 102,080,720?

 A: 2, 5, 7, 26041

Why are those the prime factors of the number 102,080,720?

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 102,080,720

102,080,720
Factor Arrows
251,040,360
Factor Arrows
225,520,180
Factor Arrows
212,760,090
Factor Arrows
26,380,045
Factor Arrows
51,276,009
Factor Arrows
7182,287
Factor Arrows
726,041

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, 7, 26041

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 7 x 26,041 = 102,080,720

This can also be written as 24 x 51 x 72 x 26,0411 = 102,080,720

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


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