Q: What are the prime factors of the number 25,176,744?

 A: 2, 3, 1439

Why are those the prime factors of the number 25,176,744?

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 25,176,744

25,176,744
Factor Arrows
212,588,372
Factor Arrows
26,294,186
Factor Arrows
23,147,093
Factor Arrows
31,049,031
Factor Arrows
3349,677
Factor Arrows
3116,559
Factor Arrows
338,853
Factor Arrows
312,951
Factor Arrows
34,317
Factor Arrows
31,439

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, 1439

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 1,439 = 25,176,744

This can also be written as 23 x 37 x 1,4391 = 25,176,744

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


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