Q: What are the prime factors of the number 25,617,377?

 A: 19, 23, 31, 61

Why are those the prime factors of the number 25,617,377?

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 25,617,377

25,617,377
Factor Arrows
191,348,283
Factor Arrows
2358,621
Factor Arrows
311,891
Factor Arrows
3161

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:

19, 23, 31, 61

We can check our work by multiplying all of the prime factors together: 19 x 23 x 31 x 31 x 61 = 25,617,377

This can also be written as 191 x 231 x 312 x 611 = 25,617,377

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


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