Q: What are the prime factors of the number 23,421,600?

 A: 2, 3, 5, 3253

Why are those the prime factors of the number 23,421,600?

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 23,421,600

23,421,600
Factor Arrows
211,710,800
Factor Arrows
25,855,400
Factor Arrows
22,927,700
Factor Arrows
21,463,850
Factor Arrows
2731,925
Factor Arrows
3243,975
Factor Arrows
381,325
Factor Arrows
516,265
Factor Arrows
53,253

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, 3, 5, 3253

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 x 3,253 = 23,421,600

This can also be written as 25 x 32 x 52 x 3,2531 = 23,421,600

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


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