Q: What are the prime factors of the number 25,707,169?

 A: 23, 61, 73, 251

Why are those the prime factors of the number 25,707,169?

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 25,707,169

25,707,169
Factor Arrows
231,117,703
Factor Arrows
6118,323
Factor Arrows
73251

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:

23, 61, 73, 251

We can check our work by multiplying all of the prime factors together: 23 x 61 x 73 x 251 = 25,707,169

This can also be written as 231 x 611 x 731 x 2511 = 25,707,169

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


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