Q: What are the prime factors of the number 25,382,442?

 A: 2, 3, 19, 53, 4201

Why are those the prime factors of the number 25,382,442?

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 25,382,442

25,382,442
Factor Arrows
212,691,221
Factor Arrows
34,230,407
Factor Arrows
19222,653
Factor Arrows
534,201

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, 3, 19, 53, 4201

We can check our work by multiplying all of the prime factors together: 2 x 3 x 19 x 53 x 4,201 = 25,382,442

This can also be written as 21 x 31 x 191 x 531 x 4,2011 = 25,382,442

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


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