Q: What are the prime factors of the number 10,115,980?

 A: 2, 5, 7, 19, 3803

Why are those the prime factors of the number 10,115,980?

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 10,115,980

10,115,980
Factor Arrows
25,057,990
Factor Arrows
22,528,995
Factor Arrows
5505,799
Factor Arrows
772,257
Factor Arrows
193,803

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, 19, 3803

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 19 x 3,803 = 10,115,980

This can also be written as 22 x 51 x 71 x 191 x 3,8031 = 10,115,980

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


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