Q: What are the prime factors of the number 10,031,520?

 A: 2, 3, 5, 20899

Why are those the prime factors of the number 10,031,520?

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 10,031,520

10,031,520
Factor Arrows
25,015,760
Factor Arrows
22,507,880
Factor Arrows
21,253,940
Factor Arrows
2626,970
Factor Arrows
2313,485
Factor Arrows
3104,495
Factor Arrows
520,899

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, 20899

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 20,899 = 10,031,520

This can also be written as 25 x 31 x 51 x 20,8991 = 10,031,520

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


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