Q: What are the prime factors of the number 23,426,144?

 A: 2, 7, 23, 4547

Why are those the prime factors of the number 23,426,144?

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 23,426,144

23,426,144
Factor Arrows
211,713,072
Factor Arrows
25,856,536
Factor Arrows
22,928,268
Factor Arrows
21,464,134
Factor Arrows
2732,067
Factor Arrows
7104,581
Factor Arrows
234,547

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, 7, 23, 4547

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 23 x 4,547 = 23,426,144

This can also be written as 25 x 71 x 231 x 4,5471 = 23,426,144

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


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