Q: What are the prime factors of the number 25,850,505?

 A: 3, 5, 23, 74929

Why are those the prime factors of the number 25,850,505?

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 25,850,505

25,850,505
Factor Arrows
38,616,835
Factor Arrows
51,723,367
Factor Arrows
2374,929

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, 5, 23, 74929

We can check our work by multiplying all of the prime factors together: 3 x 5 x 23 x 74,929 = 25,850,505

This can also be written as 31 x 51 x 231 x 74,9291 = 25,850,505

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


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