Q: What are the prime factors of the number 31,606,020?

 A: 2, 3, 5, 53, 3313

Why are those the prime factors of the number 31,606,020?

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 31,606,020

31,606,020
Factor Arrows
215,803,010
Factor Arrows
27,901,505
Factor Arrows
32,633,835
Factor Arrows
3877,945
Factor Arrows
5175,589
Factor Arrows
533,313

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, 53, 3313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 53 x 3,313 = 31,606,020

This can also be written as 22 x 32 x 51 x 531 x 3,3131 = 31,606,020

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


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