Q: What are the prime factors of the number 15,035,031?

 A: 3, 11, 23, 31, 71

Why are those the prime factors of the number 15,035,031?

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 15,035,031

15,035,031
Factor Arrows
35,011,677
Factor Arrows
31,670,559
Factor Arrows
3556,853
Factor Arrows
1150,623
Factor Arrows
232,201
Factor Arrows
3171

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:

3, 11, 23, 31, 71

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 11 x 23 x 31 x 71 = 15,035,031

This can also be written as 33 x 111 x 231 x 311 x 711 = 15,035,031

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


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