Q: What are the prime factors of the number 23,313,440?

 A: 2, 5, 145709

Why are those the prime factors of the number 23,313,440?

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 23,313,440

23,313,440
Factor Arrows
211,656,720
Factor Arrows
25,828,360
Factor Arrows
22,914,180
Factor Arrows
21,457,090
Factor Arrows
2728,545
Factor Arrows
5145,709

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, 145709

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 145,709 = 23,313,440

This can also be written as 25 x 51 x 145,7091 = 23,313,440

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


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