Q: What are the prime factors of the number 25,521,552?

 A: 2, 3, 7, 3617

Why are those the prime factors of the number 25,521,552?

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 25,521,552

25,521,552
Factor Arrows
212,760,776
Factor Arrows
26,380,388
Factor Arrows
23,190,194
Factor Arrows
21,595,097
Factor Arrows
3531,699
Factor Arrows
3177,233
Factor Arrows
725,319
Factor Arrows
73,617

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, 7, 3617

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 7 x 7 x 3,617 = 25,521,552

This can also be written as 24 x 32 x 72 x 3,6171 = 25,521,552

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


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