Q: What are the prime factors of the number 25,581,282?

 A: 2, 3, 37, 139, 829

Why are those the prime factors of the number 25,581,282?

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 25,581,282

25,581,282
Factor Arrows
212,790,641
Factor Arrows
34,263,547
Factor Arrows
37115,231
Factor Arrows
139829

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, 37, 139, 829

We can check our work by multiplying all of the prime factors together: 2 x 3 x 37 x 139 x 829 = 25,581,282

This can also be written as 21 x 31 x 371 x 1391 x 8291 = 25,581,282

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


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