Q: What are the prime factors of the number 23,515,648?

 A: 2, 13, 3533

Why are those the prime factors of the number 23,515,648?

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 23,515,648

23,515,648
Factor Arrows
211,757,824
Factor Arrows
25,878,912
Factor Arrows
22,939,456
Factor Arrows
21,469,728
Factor Arrows
2734,864
Factor Arrows
2367,432
Factor Arrows
2183,716
Factor Arrows
291,858
Factor Arrows
245,929
Factor Arrows
133,533

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, 13, 3533

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 2 x 2 x 2 x 13 x 3,533 = 23,515,648

This can also be written as 29 x 131 x 3,5331 = 23,515,648

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


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