Q: What are the prime factors of the number 130,031,320?

 A: 2, 5, 37, 103, 853

Why are those the prime factors of the number 130,031,320?

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 130,031,320

130,031,320
Factor Arrows
265,015,660
Factor Arrows
232,507,830
Factor Arrows
216,253,915
Factor Arrows
53,250,783
Factor Arrows
3787,859
Factor Arrows
103853

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, 37, 103, 853

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 37 x 103 x 853 = 130,031,320

This can also be written as 23 x 51 x 371 x 1031 x 8531 = 130,031,320

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


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