Q: What are the prime factors of the number 25,560?

 A: 2, 3, 5, 71

Why are those the prime factors of the number 25,560?

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 25,560

25,560
Factor Arrows
212,780
Factor Arrows
26,390
Factor Arrows
23,195
Factor Arrows
31,065
Factor Arrows
3355
Factor Arrows
571

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, 71

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 71 = 25,560

This can also be written as 23 x 32 x 51 x 711 = 25,560

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


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