Q: What are the prime factors of the number 25,525,449?

 A: 3, 17, 37, 167

Why are those the prime factors of the number 25,525,449?

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 25,525,449

25,525,449
Factor Arrows
38,508,483
Factor Arrows
32,836,161
Factor Arrows
3945,387
Factor Arrows
3315,129
Factor Arrows
3105,043
Factor Arrows
176,179
Factor Arrows
37167

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:

3, 17, 37, 167

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 17 x 37 x 167 = 25,525,449

This can also be written as 35 x 171 x 371 x 1671 = 25,525,449

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


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