Q: What are the prime factors of the number 23,456,720?

 A: 2, 5, 7, 41887

Why are those the prime factors of the number 23,456,720?

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 23,456,720

23,456,720
Factor Arrows
211,728,360
Factor Arrows
25,864,180
Factor Arrows
22,932,090
Factor Arrows
21,466,045
Factor Arrows
5293,209
Factor Arrows
741,887

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, 5, 7, 41887

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 41,887 = 23,456,720

This can also be written as 24 x 51 x 71 x 41,8871 = 23,456,720

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


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