Q: What are the prime factors of the number 25,318,089?

 A: 3, 19, 16451

Why are those the prime factors of the number 25,318,089?

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 25,318,089

25,318,089
Factor Arrows
38,439,363
Factor Arrows
32,813,121
Factor Arrows
3937,707
Factor Arrows
3312,569
Factor Arrows
1916,451

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:

3, 19, 16451

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 19 x 16,451 = 25,318,089

This can also be written as 34 x 191 x 16,4511 = 25,318,089

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


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