Q: What are the prime factors of the number 103,132,320?

 A: 2, 3, 5, 37, 5807

Why are those the prime factors of the number 103,132,320?

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 103,132,320

103,132,320
Factor Arrows
251,566,160
Factor Arrows
225,783,080
Factor Arrows
212,891,540
Factor Arrows
26,445,770
Factor Arrows
23,222,885
Factor Arrows
31,074,295
Factor Arrows
5214,859
Factor Arrows
375,807

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, 37, 5807

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 37 x 5,807 = 103,132,320

This can also be written as 25 x 31 x 51 x 371 x 5,8071 = 103,132,320

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


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