Q: What are the prime factors of the number 31,361,310?

 A: 2, 3, 5, 41, 2833

Why are those the prime factors of the number 31,361,310?

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 31,361,310

31,361,310
Factor Arrows
215,680,655
Factor Arrows
35,226,885
Factor Arrows
31,742,295
Factor Arrows
3580,765
Factor Arrows
5116,153
Factor Arrows
412,833

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, 41, 2833

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 41 x 2,833 = 31,361,310

This can also be written as 21 x 33 x 51 x 411 x 2,8331 = 31,361,310

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


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