Q: What are the prime factors of the number 31,010,148?

 A: 2, 3, 13, 1699

Why are those the prime factors of the number 31,010,148?

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 31,010,148

31,010,148
Factor Arrows
215,505,074
Factor Arrows
27,752,537
Factor Arrows
32,584,179
Factor Arrows
3861,393
Factor Arrows
3287,131
Factor Arrows
1322,087
Factor Arrows
131,699

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, 13, 1699

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 13 x 13 x 1,699 = 31,010,148

This can also be written as 22 x 33 x 132 x 1,6991 = 31,010,148

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


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