Q: What are the prime factors of the number 23,151,177?

 A: 3, 7, 19, 307

Why are those the prime factors of the number 23,151,177?

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 23,151,177

23,151,177
Factor Arrows
37,717,059
Factor Arrows
32,572,353
Factor Arrows
3857,451
Factor Arrows
3285,817
Factor Arrows
740,831
Factor Arrows
75,833
Factor Arrows
19307

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, 7, 19, 307

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 7 x 19 x 307 = 23,151,177

This can also be written as 34 x 72 x 191 x 3071 = 23,151,177

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


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