Q: What are the prime factors of the number 25,505,272?

 A: 2, 13, 103, 2381

Why are those the prime factors of the number 25,505,272?

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 25,505,272

25,505,272
Factor Arrows
212,752,636
Factor Arrows
26,376,318
Factor Arrows
23,188,159
Factor Arrows
13245,243
Factor Arrows
1032,381

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, 13, 103, 2381

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 103 x 2,381 = 25,505,272

This can also be written as 23 x 131 x 1031 x 2,3811 = 25,505,272

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


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