Q: What are the prime factors of the number 25,412,508?

 A: 2, 3, 11, 21391

Why are those the prime factors of the number 25,412,508?

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 25,412,508

25,412,508
Factor Arrows
212,706,254
Factor Arrows
26,353,127
Factor Arrows
32,117,709
Factor Arrows
3705,903
Factor Arrows
3235,301
Factor Arrows
1121,391

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, 11, 21391

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 11 x 21,391 = 25,412,508

This can also be written as 22 x 33 x 111 x 21,3911 = 25,412,508

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


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