Q: What are the prime factors of the number 23,190,105?

 A: 3, 5, 101, 15307

Why are those the prime factors of the number 23,190,105?

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 23,190,105

23,190,105
Factor Arrows
37,730,035
Factor Arrows
51,546,007
Factor Arrows
10115,307

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, 5, 101, 15307

We can check our work by multiplying all of the prime factors together: 3 x 5 x 101 x 15,307 = 23,190,105

This can also be written as 31 x 51 x 1011 x 15,3071 = 23,190,105

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


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