Q: What are the prime factors of the number 25,565,472?

 A: 2, 3, 29, 3061

Why are those the prime factors of the number 25,565,472?

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 25,565,472

25,565,472
Factor Arrows
212,782,736
Factor Arrows
26,391,368
Factor Arrows
23,195,684
Factor Arrows
21,597,842
Factor Arrows
2798,921
Factor Arrows
3266,307
Factor Arrows
388,769
Factor Arrows
293,061

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, 29, 3061

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 29 x 3,061 = 25,565,472

This can also be written as 25 x 32 x 291 x 3,0611 = 25,565,472

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


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