Q: What are the prime factors of the number 31,330,233?

 A: 3, 11, 3907

Why are those the prime factors of the number 31,330,233?

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 31,330,233

31,330,233
Factor Arrows
310,443,411
Factor Arrows
33,481,137
Factor Arrows
31,160,379
Factor Arrows
3386,793
Factor Arrows
3128,931
Factor Arrows
342,977
Factor Arrows
113,907

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, 3907

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 11 x 3,907 = 31,330,233

This can also be written as 36 x 111 x 3,9071 = 31,330,233

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


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