Q: What are the prime factors of the number 23,102,440?

 A: 2, 5, 31, 601

Why are those the prime factors of the number 23,102,440?

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 23,102,440

23,102,440
Factor Arrows
211,551,220
Factor Arrows
25,775,610
Factor Arrows
22,887,805
Factor Arrows
5577,561
Factor Arrows
3118,631
Factor Arrows
31601

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, 31, 601

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 31 x 31 x 601 = 23,102,440

This can also be written as 23 x 51 x 312 x 6011 = 23,102,440

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


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