Q: What are the prime factors of the number 23,210,432?

 A: 2, 7, 103, 503

Why are those the prime factors of the number 23,210,432?

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 23,210,432

23,210,432
Factor Arrows
211,605,216
Factor Arrows
25,802,608
Factor Arrows
22,901,304
Factor Arrows
21,450,652
Factor Arrows
2725,326
Factor Arrows
2362,663
Factor Arrows
751,809
Factor Arrows
103503

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, 103, 503

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 7 x 103 x 503 = 23,210,432

This can also be written as 26 x 71 x 1031 x 5031 = 23,210,432

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


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