Q: What are the prime factors of the number 25,301,312?

 A: 2, 19, 20807

Why are those the prime factors of the number 25,301,312?

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 25,301,312

25,301,312
Factor Arrows
212,650,656
Factor Arrows
26,325,328
Factor Arrows
23,162,664
Factor Arrows
21,581,332
Factor Arrows
2790,666
Factor Arrows
2395,333
Factor Arrows
1920,807

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, 19, 20807

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 19 x 20,807 = 25,301,312

This can also be written as 26 x 191 x 20,8071 = 25,301,312

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


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