Q: What are the prime factors of the number 23,125,872?

 A: 2, 3, 7, 11, 6257

Why are those the prime factors of the number 23,125,872?

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 23,125,872

23,125,872
Factor Arrows
211,562,936
Factor Arrows
25,781,468
Factor Arrows
22,890,734
Factor Arrows
21,445,367
Factor Arrows
3481,789
Factor Arrows
768,827
Factor Arrows
116,257

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, 7, 11, 6257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 11 x 6,257 = 23,125,872

This can also be written as 24 x 31 x 71 x 111 x 6,2571 = 23,125,872

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


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