Q: What are the prime factors of the number 23,148,864?

 A: 2, 3, 40189

Why are those the prime factors of the number 23,148,864?

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 23,148,864

23,148,864
Factor Arrows
211,574,432
Factor Arrows
25,787,216
Factor Arrows
22,893,608
Factor Arrows
21,446,804
Factor Arrows
2723,402
Factor Arrows
2361,701
Factor Arrows
3120,567
Factor Arrows
340,189

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, 40189

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 40,189 = 23,148,864

This can also be written as 26 x 32 x 40,1891 = 23,148,864

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


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