Q: What are the prime factors of the number 24,738,400?

 A: 2, 5, 17, 107

Why are those the prime factors of the number 24,738,400?

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 24,738,400

24,738,400
Factor Arrows
212,369,200
Factor Arrows
26,184,600
Factor Arrows
23,092,300
Factor Arrows
21,546,150
Factor Arrows
2773,075
Factor Arrows
5154,615
Factor Arrows
530,923
Factor Arrows
171,819
Factor Arrows
17107

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, 17, 107

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 5 x 17 x 17 x 107 = 24,738,400

This can also be written as 25 x 52 x 172 x 1071 = 24,738,400

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


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