Q: What are the prime factors of the number 25,555,122?

 A: 2, 3, 47, 10069

Why are those the prime factors of the number 25,555,122?

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 25,555,122

25,555,122
Factor Arrows
212,777,561
Factor Arrows
34,259,187
Factor Arrows
31,419,729
Factor Arrows
3473,243
Factor Arrows
4710,069

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, 47, 10069

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 47 x 10,069 = 25,555,122

This can also be written as 21 x 33 x 471 x 10,0691 = 25,555,122

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


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